In a population of rabbits, you find three different coat color phenotypes: chinchilla (C), himalaya (H), and albino (A). To understand the inheritance of coat colors, you cross individual rabbits with each other and note the results in the following table. a. What can you conclude about the inheritance of coat color in this population of rabbits? b. Ascribe genotypes to the parents in each of the 10 crosses. c. What kinds of progeny would you expect, and in what proportions, if you crossed the chinchilla parents in crosses 9 and 10.

Question

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Answer 1

Textbook Question

Chapter 3, Problem 13P

In a population of rabbits, you find three different coat color phenotypes: chinchilla (C), himalaya (H), and albino (A). To understand the inheritance of coat colors, you cross individual rabbits with each other and note the results in the following table.

Chapter 3, Problem 13P, In a population of rabbits, you find three different coat color phenotypes: chinchilla C, himalaya

a.	What can you conclude about the inheritance of coat color in this population of rabbits?
b.	Ascribe genotypes to the parents in each of the 10 crosses.
c.	What kinds of progeny would you expect, and in what proportions, if you crossed the chinchilla parents in crosses 9 and 10.

Expert Solution

Summary Introduction

a.

To determine:

The inheritance of coat color in this population of rabbits.

Introduction:

The gene refers to the functional and structural unit of life. The gene consists of two alleles. The increase in the number of alleles allows the generation of different phenotypes. There are four different alleles which are determining the coat color in rabbits.

Explanation of Solution

The four alleles determine the phenotype of rabbits. These are albino, wild type, chinchilla, and Himalayan. The phenotype of chinchilla rabbits have white hairs with black tips on the body, black hairs on extremities are present on Himalayan rabbits, albino has colorless hairs, and wild type has colored hairs.

The chinchilla rabbits are 75%, and the Himalayan rabbit is 25% from cross 3 data. This indicates that the dominant phenotype is chinchilla. The cross 5 contains 75% chinchilla and 25% albino rabbits. The chinchilla is dominant over albino phenotype. The cross 1 indicates Himalayan rabbits are 75% and 25% are albino rabbits. Thus Himalayan phenotype is dominant. This means inherited order is from chinchilla (c^ch) to Himalayan (c^h) to albino (c^a ) phenotype.

Expert Solution

Summary Introduction

b.

To determine:

The genotypes of the parents in each of the ten crosses.

Introduction:

The genotype and phenotype are the two terms which describe the genetic makeup of the organism and also the physical character provided by a particular allele. The known genotype of parents helps in determining the genotype of offsprings.

Explanation of Solution

The two Himalayan individuals were crossed (cross-1). The phenotypic ratio is 3:1 of Himalayan and albino. This indicates complete dominance. The genotype of both parents is c^chc^a. Thus the gametes would be c^chand c^a

♂/ ♀	c^ch	c^a
c^ch	c^chc^ch Himalayan	c^chc^a Himalayan
c^a	c^a c^ch Himalayan	c^a c^a Albino

The cross (cross 2) between Himalayan and albino results in 1:1 phenotype. This indicates dominance. Thus the genotype of Himalayan parents is c^chc^a(female), and albino is c^ac^a (male).

♂/ ♀	c^ch	c^a
c^a	c^chc^a Himalayan	c^ac^a Albino
c^a	c^chc^a Himalayan	c^a c^a Albino

The cross (cross 3) between two chinchilla rabbits that results in a 3:1 ratio (chinchilla:Himalayan). The cross ( I case) have parental genotype Cc^ch (female) and Cc^a (male) and for II case is Cc^ch(male) and Cc^ch(female).

Cross for Condition I:

♂/ ♀	C	c^ch
C	CC Chinchilla	Cc^ch Chinchilla
c^a	c^aC Chinchilla	c^ac^ch Himalayan

Cross for Condition II:

♂/ ♀	C	c^ch
C	CC Chinchilla	Cc^ch Chinchilla
c^ch	c^chC Chinchilla	c^chc^ch Himalayan

The cross (cross 4) between chinchilla and Himalayan parents results in all chinchilla phenotype. This is also a case of complete dominance. The genotype is CC (female) and c^chc^ch or c^chc^a(male).

Cross for Condition I:

♂/ ♀	C	C
c^ch	Cc^ch Chinchilla	c^chC Chinchilla
c^a	Cc^a Chinchilla	c^aC^a Chinchilla

Condition II

♂/ ♀	C	C
c^ch	Cc^ch Chinchilla	Cc^ch Chinchilla
c^ch	Cc^ch Chinchilla	Cc^ch Chinchilla

The cross (cross 5) between two chinchilla parents results in 3:1 phenotype, i.e., chinchilla and albino. This is also a case of complete dominance. The genotype is Cc^a for both parents

♂/ ♀	C	c^a
C	CC Chinchilla	Cc^a Chinchilla
c^a	Cc^a Chinchilla	c^ac^a Albino

The cross (cross 6) between albino and Himalayan parents results in all Himalayan phenotype. This is also a case of complete dominance. The genotype is c^chc^ch(female) and c^ac^a(male).

♂/ ♀	c^ch	c^ch
c^a	c^chc^a Himalayan	c^chc^a Himalayan
c^a	c^chc^a Himalayan	c^ac^ch Himalayan

The cross (cross 7) between albino and chinchilla parents results in chinchilla and albino in 1:1 ratio. This is also a case of complete dominance. The genotype is Cc^a(female) and c^ac^a(male).

For cross 7:

♂/ ♀	C	c^a
c^a	Cc^a Chinchilla	c^ac^a Albino
c^a	Cc^a Chinchilla	c^ac^a Albino

The cross (cross 8) between two albino parents results in all albino. This is also a case of complete dominance. The genotype of both parents is c^ac^a

♂/ ♀	c^a	c^a
c^a	c^a c^a Albino	c^a c^a Albino
c^a	c^a c^a Albino	c^a c^a Albino

The cross (cross 9) between himalayan and chinchilla parents results in chinchilla and chinchilla in 1:1 ratio. This is also a condition of complete dominance. The genotype of chinchilla parent is Cc^ch^, and albino parent is c^chc^ch or c^chc^a.

♂/ ♀	C	c^ch
c^ch	C c^ch Chinchilla	c^ch c^ch Himalayan
c^ch	C c^c Chinchilla	c^ch c^ch Himalayan

♂/ ♀	C	c^ch
c^ch	Cc^ch Chinchilla	c^chc^ch Chinchilla
c^a	Cc^a Chinchilla	c^chC^a Himalayan

The cross (cross 10) between Himalayan and chinchilla parents results in 2 chinchillas, 1 albino, and 1 Himalayan phenotype. The genotype of chinchilla parent is Cc^a and c^chc^a.

For cross 10 :

♂/ ♀	C	c^a
c^ch	Cc^ch Chinchilla	c^chc^a Himalayan
c^a	Cc^a Chinchilla	c^a c^a Albino

Expert Solution

Summary Introduction

c.

To determine:

The progeny of chinchilla parents 9 and 10.

Introduction:

The dominant allele always expresses itself either homozygous or in heterozygous condition. The recessive allele is only expressed in homozygous condition, not in heterozygous condition.

Explanation of Solution

The cross between chinchilla 9 and 10 have gametes C and c^a also C and c^ch. This cross results in chinchilla ¾ and Himalayan offsprings in ¼ ratio.

♂/ ♀	C	c^ch
C	CC Chinchilla	c^chC Chinchilla
c^a	C c^a Chinchilla	c^chc^a Himalayan

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Answer 2

Textbook Question

Chapter 3, Problem 13P

In a population of rabbits, you find three different coat color phenotypes: chinchilla (C), himalaya (H), and albino (A). To understand the inheritance of coat colors, you cross individual rabbits with each other and note the results in the following table.

Chapter 3, Problem 13P, In a population of rabbits, you find three different coat color phenotypes: chinchilla C, himalaya

a.	What can you conclude about the inheritance of coat color in this population of rabbits?
b.	Ascribe genotypes to the parents in each of the 10 crosses.
c.	What kinds of progeny would you expect, and in what proportions, if you crossed the chinchilla parents in crosses 9 and 10.

Expert Solution

Summary Introduction

a.

To determine:

The inheritance of coat color in this population of rabbits.

Introduction:

The gene refers to the functional and structural unit of life. The gene consists of two alleles. The increase in the number of alleles allows the generation of different phenotypes. There are four different alleles which are determining the coat color in rabbits.

Explanation of Solution

The four alleles determine the phenotype of rabbits. These are albino, wild type, chinchilla, and Himalayan. The phenotype of chinchilla rabbits have white hairs with black tips on the body, black hairs on extremities are present on Himalayan rabbits, albino has colorless hairs, and wild type has colored hairs.

The chinchilla rabbits are 75%, and the Himalayan rabbit is 25% from cross 3 data. This indicates that the dominant phenotype is chinchilla. The cross 5 contains 75% chinchilla and 25% albino rabbits. The chinchilla is dominant over albino phenotype. The cross 1 indicates Himalayan rabbits are 75% and 25% are albino rabbits. Thus Himalayan phenotype is dominant. This means inherited order is from chinchilla (c^ch) to Himalayan (c^h) to albino (c^a ) phenotype.

Expert Solution

Summary Introduction

b.

To determine:

The genotypes of the parents in each of the ten crosses.

Introduction:

The genotype and phenotype are the two terms which describe the genetic makeup of the organism and also the physical character provided by a particular allele. The known genotype of parents helps in determining the genotype of offsprings.

Explanation of Solution

The two Himalayan individuals were crossed (cross-1). The phenotypic ratio is 3:1 of Himalayan and albino. This indicates complete dominance. The genotype of both parents is c^chc^a. Thus the gametes would be c^chand c^a

♂/ ♀	c^ch	c^a
c^ch	c^chc^ch Himalayan	c^chc^a Himalayan
c^a	c^a c^ch Himalayan	c^a c^a Albino

The cross (cross 2) between Himalayan and albino results in 1:1 phenotype. This indicates dominance. Thus the genotype of Himalayan parents is c^chc^a(female), and albino is c^ac^a (male).

♂/ ♀	c^ch	c^a
c^a	c^chc^a Himalayan	c^ac^a Albino
c^a	c^chc^a Himalayan	c^a c^a Albino

The cross (cross 3) between two chinchilla rabbits that results in a 3:1 ratio (chinchilla:Himalayan). The cross ( I case) have parental genotype Cc^ch (female) and Cc^a (male) and for II case is Cc^ch(male) and Cc^ch(female).

Cross for Condition I:

♂/ ♀	C	c^ch
C	CC Chinchilla	Cc^ch Chinchilla
c^a	c^aC Chinchilla	c^ac^ch Himalayan

Cross for Condition II:

♂/ ♀	C	c^ch
C	CC Chinchilla	Cc^ch Chinchilla
c^ch	c^chC Chinchilla	c^chc^ch Himalayan

The cross (cross 4) between chinchilla and Himalayan parents results in all chinchilla phenotype. This is also a case of complete dominance. The genotype is CC (female) and c^chc^ch or c^chc^a(male).

Cross for Condition I:

♂/ ♀	C	C
c^ch	Cc^ch Chinchilla	c^chC Chinchilla
c^a	Cc^a Chinchilla	c^aC^a Chinchilla

Condition II

♂/ ♀	C	C
c^ch	Cc^ch Chinchilla	Cc^ch Chinchilla
c^ch	Cc^ch Chinchilla	Cc^ch Chinchilla

The cross (cross 5) between two chinchilla parents results in 3:1 phenotype, i.e., chinchilla and albino. This is also a case of complete dominance. The genotype is Cc^a for both parents

♂/ ♀	C	c^a
C	CC Chinchilla	Cc^a Chinchilla
c^a	Cc^a Chinchilla	c^ac^a Albino

The cross (cross 6) between albino and Himalayan parents results in all Himalayan phenotype. This is also a case of complete dominance. The genotype is c^chc^ch(female) and c^ac^a(male).

♂/ ♀	c^ch	c^ch
c^a	c^chc^a Himalayan	c^chc^a Himalayan
c^a	c^chc^a Himalayan	c^ac^ch Himalayan

The cross (cross 7) between albino and chinchilla parents results in chinchilla and albino in 1:1 ratio. This is also a case of complete dominance. The genotype is Cc^a(female) and c^ac^a(male).

For cross 7:

♂/ ♀	C	c^a
c^a	Cc^a Chinchilla	c^ac^a Albino
c^a	Cc^a Chinchilla	c^ac^a Albino

The cross (cross 8) between two albino parents results in all albino. This is also a case of complete dominance. The genotype of both parents is c^ac^a

♂/ ♀	c^a	c^a
c^a	c^a c^a Albino	c^a c^a Albino
c^a	c^a c^a Albino	c^a c^a Albino

The cross (cross 9) between himalayan and chinchilla parents results in chinchilla and chinchilla in 1:1 ratio. This is also a condition of complete dominance. The genotype of chinchilla parent is Cc^ch^, and albino parent is c^chc^ch or c^chc^a.

♂/ ♀	C	c^ch
c^ch	C c^ch Chinchilla	c^ch c^ch Himalayan
c^ch	C c^c Chinchilla	c^ch c^ch Himalayan

♂/ ♀	C	c^ch
c^ch	Cc^ch Chinchilla	c^chc^ch Chinchilla
c^a	Cc^a Chinchilla	c^chC^a Himalayan

The cross (cross 10) between Himalayan and chinchilla parents results in 2 chinchillas, 1 albino, and 1 Himalayan phenotype. The genotype of chinchilla parent is Cc^a and c^chc^a.

For cross 10 :

♂/ ♀	C	c^a
c^ch	Cc^ch Chinchilla	c^chc^a Himalayan
c^a	Cc^a Chinchilla	c^a c^a Albino

Expert Solution

Summary Introduction

c.

To determine:

The progeny of chinchilla parents 9 and 10.

Introduction:

The dominant allele always expresses itself either homozygous or in heterozygous condition. The recessive allele is only expressed in homozygous condition, not in heterozygous condition.

Explanation of Solution

The cross between chinchilla 9 and 10 have gametes C and c^a also C and c^ch. This cross results in chinchilla ¾ and Himalayan offsprings in ¼ ratio.

♂/ ♀	C	c^ch
C	CC Chinchilla	c^chC Chinchilla
c^a	C c^a Chinchilla	c^chc^a Himalayan

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Answer 3

Textbook Question

Chapter 3, Problem 13P

In a population of rabbits, you find three different coat color phenotypes: chinchilla (C), himalaya (H), and albino (A). To understand the inheritance of coat colors, you cross individual rabbits with each other and note the results in the following table.

Chapter 3, Problem 13P, In a population of rabbits, you find three different coat color phenotypes: chinchilla C, himalaya

a.	What can you conclude about the inheritance of coat color in this population of rabbits?
b.	Ascribe genotypes to the parents in each of the 10 crosses.
c.	What kinds of progeny would you expect, and in what proportions, if you crossed the chinchilla parents in crosses 9 and 10.

Expert Solution

Summary Introduction

a.

To determine:

The inheritance of coat color in this population of rabbits.

Introduction:

The gene refers to the functional and structural unit of life. The gene consists of two alleles. The increase in the number of alleles allows the generation of different phenotypes. There are four different alleles which are determining the coat color in rabbits.

Explanation of Solution

The four alleles determine the phenotype of rabbits. These are albino, wild type, chinchilla, and Himalayan. The phenotype of chinchilla rabbits have white hairs with black tips on the body, black hairs on extremities are present on Himalayan rabbits, albino has colorless hairs, and wild type has colored hairs.

The chinchilla rabbits are 75%, and the Himalayan rabbit is 25% from cross 3 data. This indicates that the dominant phenotype is chinchilla. The cross 5 contains 75% chinchilla and 25% albino rabbits. The chinchilla is dominant over albino phenotype. The cross 1 indicates Himalayan rabbits are 75% and 25% are albino rabbits. Thus Himalayan phenotype is dominant. This means inherited order is from chinchilla (c^ch) to Himalayan (c^h) to albino (c^a ) phenotype.

Expert Solution

Summary Introduction

b.

To determine:

The genotypes of the parents in each of the ten crosses.

Introduction:

The genotype and phenotype are the two terms which describe the genetic makeup of the organism and also the physical character provided by a particular allele. The known genotype of parents helps in determining the genotype of offsprings.

Explanation of Solution

The two Himalayan individuals were crossed (cross-1). The phenotypic ratio is 3:1 of Himalayan and albino. This indicates complete dominance. The genotype of both parents is c^chc^a. Thus the gametes would be c^chand c^a

♂/ ♀	c^ch	c^a
c^ch	c^chc^ch Himalayan	c^chc^a Himalayan
c^a	c^a c^ch Himalayan	c^a c^a Albino

The cross (cross 2) between Himalayan and albino results in 1:1 phenotype. This indicates dominance. Thus the genotype of Himalayan parents is c^chc^a(female), and albino is c^ac^a (male).

♂/ ♀	c^ch	c^a
c^a	c^chc^a Himalayan	c^ac^a Albino
c^a	c^chc^a Himalayan	c^a c^a Albino

The cross (cross 3) between two chinchilla rabbits that results in a 3:1 ratio (chinchilla:Himalayan). The cross ( I case) have parental genotype Cc^ch (female) and Cc^a (male) and for II case is Cc^ch(male) and Cc^ch(female).

Cross for Condition I:

♂/ ♀	C	c^ch
C	CC Chinchilla	Cc^ch Chinchilla
c^a	c^aC Chinchilla	c^ac^ch Himalayan

Cross for Condition II:

♂/ ♀	C	c^ch
C	CC Chinchilla	Cc^ch Chinchilla
c^ch	c^chC Chinchilla	c^chc^ch Himalayan

The cross (cross 4) between chinchilla and Himalayan parents results in all chinchilla phenotype. This is also a case of complete dominance. The genotype is CC (female) and c^chc^ch or c^chc^a(male).

Cross for Condition I:

♂/ ♀	C	C
c^ch	Cc^ch Chinchilla	c^chC Chinchilla
c^a	Cc^a Chinchilla	c^aC^a Chinchilla

Condition II

♂/ ♀	C	C
c^ch	Cc^ch Chinchilla	Cc^ch Chinchilla
c^ch	Cc^ch Chinchilla	Cc^ch Chinchilla

The cross (cross 5) between two chinchilla parents results in 3:1 phenotype, i.e., chinchilla and albino. This is also a case of complete dominance. The genotype is Cc^a for both parents

♂/ ♀	C	c^a
C	CC Chinchilla	Cc^a Chinchilla
c^a	Cc^a Chinchilla	c^ac^a Albino

The cross (cross 6) between albino and Himalayan parents results in all Himalayan phenotype. This is also a case of complete dominance. The genotype is c^chc^ch(female) and c^ac^a(male).

♂/ ♀	c^ch	c^ch
c^a	c^chc^a Himalayan	c^chc^a Himalayan
c^a	c^chc^a Himalayan	c^ac^ch Himalayan

The cross (cross 7) between albino and chinchilla parents results in chinchilla and albino in 1:1 ratio. This is also a case of complete dominance. The genotype is Cc^a(female) and c^ac^a(male).

For cross 7:

♂/ ♀	C	c^a
c^a	Cc^a Chinchilla	c^ac^a Albino
c^a	Cc^a Chinchilla	c^ac^a Albino

The cross (cross 8) between two albino parents results in all albino. This is also a case of complete dominance. The genotype of both parents is c^ac^a

♂/ ♀	c^a	c^a
c^a	c^a c^a Albino	c^a c^a Albino
c^a	c^a c^a Albino	c^a c^a Albino

The cross (cross 9) between himalayan and chinchilla parents results in chinchilla and chinchilla in 1:1 ratio. This is also a condition of complete dominance. The genotype of chinchilla parent is Cc^ch^, and albino parent is c^chc^ch or c^chc^a.

♂/ ♀	C	c^ch
c^ch	C c^ch Chinchilla	c^ch c^ch Himalayan
c^ch	C c^c Chinchilla	c^ch c^ch Himalayan

♂/ ♀	C	c^ch
c^ch	Cc^ch Chinchilla	c^chc^ch Chinchilla
c^a	Cc^a Chinchilla	c^chC^a Himalayan

The cross (cross 10) between Himalayan and chinchilla parents results in 2 chinchillas, 1 albino, and 1 Himalayan phenotype. The genotype of chinchilla parent is Cc^a and c^chc^a.

For cross 10 :

♂/ ♀	C	c^a
c^ch	Cc^ch Chinchilla	c^chc^a Himalayan
c^a	Cc^a Chinchilla	c^a c^a Albino

Expert Solution

Summary Introduction

c.

To determine:

The progeny of chinchilla parents 9 and 10.

Introduction:

The dominant allele always expresses itself either homozygous or in heterozygous condition. The recessive allele is only expressed in homozygous condition, not in heterozygous condition.

Explanation of Solution

The cross between chinchilla 9 and 10 have gametes C and c^a also C and c^ch. This cross results in chinchilla ¾ and Himalayan offsprings in ¼ ratio.

♂/ ♀	C	c^ch
C	CC Chinchilla	c^chC Chinchilla
c^a	C c^a Chinchilla	c^chc^a Himalayan

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Answer 4

Textbook Question

Chapter 3, Problem 13P

In a population of rabbits, you find three different coat color phenotypes: chinchilla (C), himalaya (H), and albino (A). To understand the inheritance of coat colors, you cross individual rabbits with each other and note the results in the following table.

Chapter 3, Problem 13P, In a population of rabbits, you find three different coat color phenotypes: chinchilla C, himalaya

a.	What can you conclude about the inheritance of coat color in this population of rabbits?
b.	Ascribe genotypes to the parents in each of the 10 crosses.
c.	What kinds of progeny would you expect, and in what proportions, if you crossed the chinchilla parents in crosses 9 and 10.

Expert Solution

Summary Introduction

a.

To determine:

The inheritance of coat color in this population of rabbits.

Introduction:

The gene refers to the functional and structural unit of life. The gene consists of two alleles. The increase in the number of alleles allows the generation of different phenotypes. There are four different alleles which are determining the coat color in rabbits.

Explanation of Solution

The four alleles determine the phenotype of rabbits. These are albino, wild type, chinchilla, and Himalayan. The phenotype of chinchilla rabbits have white hairs with black tips on the body, black hairs on extremities are present on Himalayan rabbits, albino has colorless hairs, and wild type has colored hairs.

The chinchilla rabbits are 75%, and the Himalayan rabbit is 25% from cross 3 data. This indicates that the dominant phenotype is chinchilla. The cross 5 contains 75% chinchilla and 25% albino rabbits. The chinchilla is dominant over albino phenotype. The cross 1 indicates Himalayan rabbits are 75% and 25% are albino rabbits. Thus Himalayan phenotype is dominant. This means inherited order is from chinchilla (c^ch) to Himalayan (c^h) to albino (c^a ) phenotype.

Expert Solution

Summary Introduction

b.

To determine:

The genotypes of the parents in each of the ten crosses.

Introduction:

The genotype and phenotype are the two terms which describe the genetic makeup of the organism and also the physical character provided by a particular allele. The known genotype of parents helps in determining the genotype of offsprings.

Explanation of Solution

The two Himalayan individuals were crossed (cross-1). The phenotypic ratio is 3:1 of Himalayan and albino. This indicates complete dominance. The genotype of both parents is c^chc^a. Thus the gametes would be c^chand c^a

♂/ ♀	c^ch	c^a
c^ch	c^chc^ch Himalayan	c^chc^a Himalayan
c^a	c^a c^ch Himalayan	c^a c^a Albino

The cross (cross 2) between Himalayan and albino results in 1:1 phenotype. This indicates dominance. Thus the genotype of Himalayan parents is c^chc^a(female), and albino is c^ac^a (male).

♂/ ♀	c^ch	c^a
c^a	c^chc^a Himalayan	c^ac^a Albino
c^a	c^chc^a Himalayan	c^a c^a Albino

The cross (cross 3) between two chinchilla rabbits that results in a 3:1 ratio (chinchilla:Himalayan). The cross ( I case) have parental genotype Cc^ch (female) and Cc^a (male) and for II case is Cc^ch(male) and Cc^ch(female).

Cross for Condition I:

♂/ ♀	C	c^ch
C	CC Chinchilla	Cc^ch Chinchilla
c^a	c^aC Chinchilla	c^ac^ch Himalayan

Cross for Condition II:

♂/ ♀	C	c^ch
C	CC Chinchilla	Cc^ch Chinchilla
c^ch	c^chC Chinchilla	c^chc^ch Himalayan

The cross (cross 4) between chinchilla and Himalayan parents results in all chinchilla phenotype. This is also a case of complete dominance. The genotype is CC (female) and c^chc^ch or c^chc^a(male).

Cross for Condition I:

♂/ ♀	C	C
c^ch	Cc^ch Chinchilla	c^chC Chinchilla
c^a	Cc^a Chinchilla	c^aC^a Chinchilla

Condition II

♂/ ♀	C	C
c^ch	Cc^ch Chinchilla	Cc^ch Chinchilla
c^ch	Cc^ch Chinchilla	Cc^ch Chinchilla

The cross (cross 5) between two chinchilla parents results in 3:1 phenotype, i.e., chinchilla and albino. This is also a case of complete dominance. The genotype is Cc^a for both parents

♂/ ♀	C	c^a
C	CC Chinchilla	Cc^a Chinchilla
c^a	Cc^a Chinchilla	c^ac^a Albino

The cross (cross 6) between albino and Himalayan parents results in all Himalayan phenotype. This is also a case of complete dominance. The genotype is c^chc^ch(female) and c^ac^a(male).

♂/ ♀	c^ch	c^ch
c^a	c^chc^a Himalayan	c^chc^a Himalayan
c^a	c^chc^a Himalayan	c^ac^ch Himalayan

The cross (cross 7) between albino and chinchilla parents results in chinchilla and albino in 1:1 ratio. This is also a case of complete dominance. The genotype is Cc^a(female) and c^ac^a(male).

For cross 7:

♂/ ♀	C	c^a
c^a	Cc^a Chinchilla	c^ac^a Albino
c^a	Cc^a Chinchilla	c^ac^a Albino

The cross (cross 8) between two albino parents results in all albino. This is also a case of complete dominance. The genotype of both parents is c^ac^a

♂/ ♀	c^a	c^a
c^a	c^a c^a Albino	c^a c^a Albino
c^a	c^a c^a Albino	c^a c^a Albino

The cross (cross 9) between himalayan and chinchilla parents results in chinchilla and chinchilla in 1:1 ratio. This is also a condition of complete dominance. The genotype of chinchilla parent is Cc^ch^, and albino parent is c^chc^ch or c^chc^a.

♂/ ♀	C	c^ch
c^ch	C c^ch Chinchilla	c^ch c^ch Himalayan
c^ch	C c^c Chinchilla	c^ch c^ch Himalayan

♂/ ♀	C	c^ch
c^ch	Cc^ch Chinchilla	c^chc^ch Chinchilla
c^a	Cc^a Chinchilla	c^chC^a Himalayan

The cross (cross 10) between Himalayan and chinchilla parents results in 2 chinchillas, 1 albino, and 1 Himalayan phenotype. The genotype of chinchilla parent is Cc^a and c^chc^a.

For cross 10 :

♂/ ♀	C	c^a
c^ch	Cc^ch Chinchilla	c^chc^a Himalayan
c^a	Cc^a Chinchilla	c^a c^a Albino

Expert Solution

Summary Introduction

c.

To determine:

The progeny of chinchilla parents 9 and 10.

Introduction:

The dominant allele always expresses itself either homozygous or in heterozygous condition. The recessive allele is only expressed in homozygous condition, not in heterozygous condition.

Explanation of Solution

The cross between chinchilla 9 and 10 have gametes C and c^a also C and c^ch. This cross results in chinchilla ¾ and Himalayan offsprings in ¼ ratio.

♂/ ♀	C	c^ch
C	CC Chinchilla	c^chC Chinchilla
c^a	C c^a Chinchilla	c^chc^a Himalayan

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Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution

Summary Introduction

a.

To determine:

The inheritance of coat color in this population of rabbits.

Introduction:

The gene refers to the functional and structural unit of life. The gene consists of two alleles. The increase in the number of alleles allows the generation of different phenotypes. There are four different alleles which are determining the coat color in rabbits.

Explanation of Solution

The four alleles determine the phenotype of rabbits. These are albino, wild type, chinchilla, and Himalayan. The phenotype of chinchilla rabbits have white hairs with black tips on the body, black hairs on extremities are present on Himalayan rabbits, albino has colorless hairs, and wild type has colored hairs.

The chinchilla rabbits are 75%, and the Himalayan rabbit is 25% from cross 3 data. This indicates that the dominant phenotype is chinchilla. The cross 5 contains 75% chinchilla and 25% albino rabbits. The chinchilla is dominant over albino phenotype. The cross 1 indicates Himalayan rabbits are 75% and 25% are albino rabbits. Thus Himalayan phenotype is dominant. This means inherited order is from chinchilla (c^ch) to Himalayan (c^h) to albino (c^a ) phenotype.

Expert Solution

Summary Introduction

b.

To determine:

The genotypes of the parents in each of the ten crosses.

Introduction:

The genotype and phenotype are the two terms which describe the genetic makeup of the organism and also the physical character provided by a particular allele. The known genotype of parents helps in determining the genotype of offsprings.

Explanation of Solution

The two Himalayan individuals were crossed (cross-1). The phenotypic ratio is 3:1 of Himalayan and albino. This indicates complete dominance. The genotype of both parents is c^chc^a. Thus the gametes would be c^chand c^a

♂/ ♀	c^ch	c^a
c^ch	c^chc^ch Himalayan	c^chc^a Himalayan
c^a	c^a c^ch Himalayan	c^a c^a Albino

The cross (cross 2) between Himalayan and albino results in 1:1 phenotype. This indicates dominance. Thus the genotype of Himalayan parents is c^chc^a(female), and albino is c^ac^a (male).

♂/ ♀	c^ch	c^a
c^a	c^chc^a Himalayan	c^ac^a Albino
c^a	c^chc^a Himalayan	c^a c^a Albino

The cross (cross 3) between two chinchilla rabbits that results in a 3:1 ratio (chinchilla:Himalayan). The cross ( I case) have parental genotype Cc^ch (female) and Cc^a (male) and for II case is Cc^ch(male) and Cc^ch(female).

Cross for Condition I:

♂/ ♀	C	c^ch
C	CC Chinchilla	Cc^ch Chinchilla
c^a	c^aC Chinchilla	c^ac^ch Himalayan

Cross for Condition II:

♂/ ♀	C	c^ch
C	CC Chinchilla	Cc^ch Chinchilla
c^ch	c^chC Chinchilla	c^chc^ch Himalayan

The cross (cross 4) between chinchilla and Himalayan parents results in all chinchilla phenotype. This is also a case of complete dominance. The genotype is CC (female) and c^chc^ch or c^chc^a(male).

Cross for Condition I:

♂/ ♀	C	C
c^ch	Cc^ch Chinchilla	c^chC Chinchilla
c^a	Cc^a Chinchilla	c^aC^a Chinchilla

Condition II

♂/ ♀	C	C
c^ch	Cc^ch Chinchilla	Cc^ch Chinchilla
c^ch	Cc^ch Chinchilla	Cc^ch Chinchilla

The cross (cross 5) between two chinchilla parents results in 3:1 phenotype, i.e., chinchilla and albino. This is also a case of complete dominance. The genotype is Cc^a for both parents

♂/ ♀	C	c^a
C	CC Chinchilla	Cc^a Chinchilla
c^a	Cc^a Chinchilla	c^ac^a Albino

The cross (cross 6) between albino and Himalayan parents results in all Himalayan phenotype. This is also a case of complete dominance. The genotype is c^chc^ch(female) and c^ac^a(male).

♂/ ♀	c^ch	c^ch
c^a	c^chc^a Himalayan	c^chc^a Himalayan
c^a	c^chc^a Himalayan	c^ac^ch Himalayan

The cross (cross 7) between albino and chinchilla parents results in chinchilla and albino in 1:1 ratio. This is also a case of complete dominance. The genotype is Cc^a(female) and c^ac^a(male).

For cross 7:

♂/ ♀	C	c^a
c^a	Cc^a Chinchilla	c^ac^a Albino
c^a	Cc^a Chinchilla	c^ac^a Albino

The cross (cross 8) between two albino parents results in all albino. This is also a case of complete dominance. The genotype of both parents is c^ac^a

♂/ ♀	c^a	c^a
c^a	c^a c^a Albino	c^a c^a Albino
c^a	c^a c^a Albino	c^a c^a Albino

The cross (cross 9) between himalayan and chinchilla parents results in chinchilla and chinchilla in 1:1 ratio. This is also a condition of complete dominance. The genotype of chinchilla parent is Cc^ch^, and albino parent is c^chc^ch or c^chc^a.

♂/ ♀	C	c^ch
c^ch	C c^ch Chinchilla	c^ch c^ch Himalayan
c^ch	C c^c Chinchilla	c^ch c^ch Himalayan

♂/ ♀	C	c^ch
c^ch	Cc^ch Chinchilla	c^chc^ch Chinchilla
c^a	Cc^a Chinchilla	c^chC^a Himalayan

The cross (cross 10) between Himalayan and chinchilla parents results in 2 chinchillas, 1 albino, and 1 Himalayan phenotype. The genotype of chinchilla parent is Cc^a and c^chc^a.

For cross 10 :

♂/ ♀	C	c^a
c^ch	Cc^ch Chinchilla	c^chc^a Himalayan
c^a	Cc^a Chinchilla	c^a c^a Albino

Expert Solution

Summary Introduction

c.

To determine:

The progeny of chinchilla parents 9 and 10.

Introduction:

The dominant allele always expresses itself either homozygous or in heterozygous condition. The recessive allele is only expressed in homozygous condition, not in heterozygous condition.

Explanation of Solution

The cross between chinchilla 9 and 10 have gametes C and c^a also C and c^ch. This cross results in chinchilla ¾ and Himalayan offsprings in ¼ ratio.

♂/ ♀	C	c^ch
C	CC Chinchilla	c^chC Chinchilla
c^a	C c^a Chinchilla	c^chc^a Himalayan

Answer 8

Expert Solution

Summary Introduction

a.

To determine:

The inheritance of coat color in this population of rabbits.

Introduction:

The gene refers to the functional and structural unit of life. The gene consists of two alleles. The increase in the number of alleles allows the generation of different phenotypes. There are four different alleles which are determining the coat color in rabbits.

Explanation of Solution

The four alleles determine the phenotype of rabbits. These are albino, wild type, chinchilla, and Himalayan. The phenotype of chinchilla rabbits have white hairs with black tips on the body, black hairs on extremities are present on Himalayan rabbits, albino has colorless hairs, and wild type has colored hairs.

The chinchilla rabbits are 75%, and the Himalayan rabbit is 25% from cross 3 data. This indicates that the dominant phenotype is chinchilla. The cross 5 contains 75% chinchilla and 25% albino rabbits. The chinchilla is dominant over albino phenotype. The cross 1 indicates Himalayan rabbits are 75% and 25% are albino rabbits. Thus Himalayan phenotype is dominant. This means inherited order is from chinchilla (c^ch) to Himalayan (c^h) to albino (c^a ) phenotype.

Answer 9

Expert Solution

Answer 10

Expert Solution

Answer 11

Expert Solution

Answer 12

Summary Introduction

a.

To determine:

The inheritance of coat color in this population of rabbits.

Introduction:

The gene refers to the functional and structural unit of life. The gene consists of two alleles. The increase in the number of alleles allows the generation of different phenotypes. There are four different alleles which are determining the coat color in rabbits.

Answer 13

Explanation of Solution

The four alleles determine the phenotype of rabbits. These are albino, wild type, chinchilla, and Himalayan. The phenotype of chinchilla rabbits have white hairs with black tips on the body, black hairs on extremities are present on Himalayan rabbits, albino has colorless hairs, and wild type has colored hairs.

The chinchilla rabbits are 75%, and the Himalayan rabbit is 25% from cross 3 data. This indicates that the dominant phenotype is chinchilla. The cross 5 contains 75% chinchilla and 25% albino rabbits. The chinchilla is dominant over albino phenotype. The cross 1 indicates Himalayan rabbits are 75% and 25% are albino rabbits. Thus Himalayan phenotype is dominant. This means inherited order is from chinchilla (c^ch) to Himalayan (c^h) to albino (c^a ) phenotype.

Answer 14

Expert Solution

Summary Introduction

b.

To determine:

The genotypes of the parents in each of the ten crosses.

Introduction:

The genotype and phenotype are the two terms which describe the genetic makeup of the organism and also the physical character provided by a particular allele. The known genotype of parents helps in determining the genotype of offsprings.

Explanation of Solution

The two Himalayan individuals were crossed (cross-1). The phenotypic ratio is 3:1 of Himalayan and albino. This indicates complete dominance. The genotype of both parents is c^chc^a. Thus the gametes would be c^chand c^a

♂/ ♀	c^ch	c^a
c^ch	c^chc^ch Himalayan	c^chc^a Himalayan
c^a	c^a c^ch Himalayan	c^a c^a Albino

The cross (cross 2) between Himalayan and albino results in 1:1 phenotype. This indicates dominance. Thus the genotype of Himalayan parents is c^chc^a(female), and albino is c^ac^a (male).

♂/ ♀	c^ch	c^a
c^a	c^chc^a Himalayan	c^ac^a Albino
c^a	c^chc^a Himalayan	c^a c^a Albino

The cross (cross 3) between two chinchilla rabbits that results in a 3:1 ratio (chinchilla:Himalayan). The cross ( I case) have parental genotype Cc^ch (female) and Cc^a (male) and for II case is Cc^ch(male) and Cc^ch(female).

Cross for Condition I:

♂/ ♀	C	c^ch
C	CC Chinchilla	Cc^ch Chinchilla
c^a	c^aC Chinchilla	c^ac^ch Himalayan

Cross for Condition II:

♂/ ♀	C	c^ch
C	CC Chinchilla	Cc^ch Chinchilla
c^ch	c^chC Chinchilla	c^chc^ch Himalayan

The cross (cross 4) between chinchilla and Himalayan parents results in all chinchilla phenotype. This is also a case of complete dominance. The genotype is CC (female) and c^chc^ch or c^chc^a(male).

Cross for Condition I:

♂/ ♀	C	C
c^ch	Cc^ch Chinchilla	c^chC Chinchilla
c^a	Cc^a Chinchilla	c^aC^a Chinchilla

Condition II

♂/ ♀	C	C
c^ch	Cc^ch Chinchilla	Cc^ch Chinchilla
c^ch	Cc^ch Chinchilla	Cc^ch Chinchilla

The cross (cross 5) between two chinchilla parents results in 3:1 phenotype, i.e., chinchilla and albino. This is also a case of complete dominance. The genotype is Cc^a for both parents

♂/ ♀	C	c^a
C	CC Chinchilla	Cc^a Chinchilla
c^a	Cc^a Chinchilla	c^ac^a Albino

The cross (cross 6) between albino and Himalayan parents results in all Himalayan phenotype. This is also a case of complete dominance. The genotype is c^chc^ch(female) and c^ac^a(male).

♂/ ♀	c^ch	c^ch
c^a	c^chc^a Himalayan	c^chc^a Himalayan
c^a	c^chc^a Himalayan	c^ac^ch Himalayan

The cross (cross 7) between albino and chinchilla parents results in chinchilla and albino in 1:1 ratio. This is also a case of complete dominance. The genotype is Cc^a(female) and c^ac^a(male).

For cross 7:

♂/ ♀	C	c^a
c^a	Cc^a Chinchilla	c^ac^a Albino
c^a	Cc^a Chinchilla	c^ac^a Albino

The cross (cross 8) between two albino parents results in all albino. This is also a case of complete dominance. The genotype of both parents is c^ac^a

♂/ ♀	c^a	c^a
c^a	c^a c^a Albino	c^a c^a Albino
c^a	c^a c^a Albino	c^a c^a Albino

The cross (cross 9) between himalayan and chinchilla parents results in chinchilla and chinchilla in 1:1 ratio. This is also a condition of complete dominance. The genotype of chinchilla parent is Cc^ch^, and albino parent is c^chc^ch or c^chc^a.

♂/ ♀	C	c^ch
c^ch	C c^ch Chinchilla	c^ch c^ch Himalayan
c^ch	C c^c Chinchilla	c^ch c^ch Himalayan

♂/ ♀	C	c^ch
c^ch	Cc^ch Chinchilla	c^chc^ch Chinchilla
c^a	Cc^a Chinchilla	c^chC^a Himalayan

The cross (cross 10) between Himalayan and chinchilla parents results in 2 chinchillas, 1 albino, and 1 Himalayan phenotype. The genotype of chinchilla parent is Cc^a and c^chc^a.

For cross 10 :

♂/ ♀	C	c^a
c^ch	Cc^ch Chinchilla	c^chc^a Himalayan
c^a	Cc^a Chinchilla	c^a c^a Albino

Answer 15

Expert Solution

Answer 16

Expert Solution

Answer 17

Expert Solution

Answer 18

Summary Introduction

b.

To determine:

The genotypes of the parents in each of the ten crosses.

Introduction:

The genotype and phenotype are the two terms which describe the genetic makeup of the organism and also the physical character provided by a particular allele. The known genotype of parents helps in determining the genotype of offsprings.

Answer 19

Explanation of Solution

The two Himalayan individuals were crossed (cross-1). The phenotypic ratio is 3:1 of Himalayan and albino. This indicates complete dominance. The genotype of both parents is c^chc^a. Thus the gametes would be c^chand c^a

♂/ ♀	c^ch	c^a
c^ch	c^chc^ch Himalayan	c^chc^a Himalayan
c^a	c^a c^ch Himalayan	c^a c^a Albino

The cross (cross 2) between Himalayan and albino results in 1:1 phenotype. This indicates dominance. Thus the genotype of Himalayan parents is c^chc^a(female), and albino is c^ac^a (male).

♂/ ♀	c^ch	c^a
c^a	c^chc^a Himalayan	c^ac^a Albino
c^a	c^chc^a Himalayan	c^a c^a Albino

The cross (cross 3) between two chinchilla rabbits that results in a 3:1 ratio (chinchilla:Himalayan). The cross ( I case) have parental genotype Cc^ch (female) and Cc^a (male) and for II case is Cc^ch(male) and Cc^ch(female).

Cross for Condition I:

♂/ ♀	C	c^ch
C	CC Chinchilla	Cc^ch Chinchilla
c^a	c^aC Chinchilla	c^ac^ch Himalayan

Cross for Condition II:

♂/ ♀	C	c^ch
C	CC Chinchilla	Cc^ch Chinchilla
c^ch	c^chC Chinchilla	c^chc^ch Himalayan

The cross (cross 4) between chinchilla and Himalayan parents results in all chinchilla phenotype. This is also a case of complete dominance. The genotype is CC (female) and c^chc^ch or c^chc^a(male).

Cross for Condition I:

♂/ ♀	C	C
c^ch	Cc^ch Chinchilla	c^chC Chinchilla
c^a	Cc^a Chinchilla	c^aC^a Chinchilla

Condition II

♂/ ♀	C	C
c^ch	Cc^ch Chinchilla	Cc^ch Chinchilla
c^ch	Cc^ch Chinchilla	Cc^ch Chinchilla

The cross (cross 5) between two chinchilla parents results in 3:1 phenotype, i.e., chinchilla and albino. This is also a case of complete dominance. The genotype is Cc^a for both parents

♂/ ♀	C	c^a
C	CC Chinchilla	Cc^a Chinchilla
c^a	Cc^a Chinchilla	c^ac^a Albino

The cross (cross 6) between albino and Himalayan parents results in all Himalayan phenotype. This is also a case of complete dominance. The genotype is c^chc^ch(female) and c^ac^a(male).

♂/ ♀	c^ch	c^ch
c^a	c^chc^a Himalayan	c^chc^a Himalayan
c^a	c^chc^a Himalayan	c^ac^ch Himalayan

The cross (cross 7) between albino and chinchilla parents results in chinchilla and albino in 1:1 ratio. This is also a case of complete dominance. The genotype is Cc^a(female) and c^ac^a(male).

For cross 7:

♂/ ♀	C	c^a
c^a	Cc^a Chinchilla	c^ac^a Albino
c^a	Cc^a Chinchilla	c^ac^a Albino

The cross (cross 8) between two albino parents results in all albino. This is also a case of complete dominance. The genotype of both parents is c^ac^a

♂/ ♀	c^a	c^a
c^a	c^a c^a Albino	c^a c^a Albino
c^a	c^a c^a Albino	c^a c^a Albino

The cross (cross 9) between himalayan and chinchilla parents results in chinchilla and chinchilla in 1:1 ratio. This is also a condition of complete dominance. The genotype of chinchilla parent is Cc^ch^, and albino parent is c^chc^ch or c^chc^a.

♂/ ♀	C	c^ch
c^ch	C c^ch Chinchilla	c^ch c^ch Himalayan
c^ch	C c^c Chinchilla	c^ch c^ch Himalayan

♂/ ♀	C	c^ch
c^ch	Cc^ch Chinchilla	c^chc^ch Chinchilla
c^a	Cc^a Chinchilla	c^chC^a Himalayan

The cross (cross 10) between Himalayan and chinchilla parents results in 2 chinchillas, 1 albino, and 1 Himalayan phenotype. The genotype of chinchilla parent is Cc^a and c^chc^a.

For cross 10 :

♂/ ♀	C	c^a
c^ch	Cc^ch Chinchilla	c^chc^a Himalayan
c^a	Cc^a Chinchilla	c^a c^a Albino

Answer 20

Expert Solution

Summary Introduction

c.

To determine:

The progeny of chinchilla parents 9 and 10.

Introduction:

The dominant allele always expresses itself either homozygous or in heterozygous condition. The recessive allele is only expressed in homozygous condition, not in heterozygous condition.

Explanation of Solution

The cross between chinchilla 9 and 10 have gametes C and c^a also C and c^ch. This cross results in chinchilla ¾ and Himalayan offsprings in ¼ ratio.

♂/ ♀	C	c^ch
C	CC Chinchilla	c^chC Chinchilla
c^a	C c^a Chinchilla	c^chc^a Himalayan

Answer 21

Expert Solution

Answer 22

Expert Solution

Answer 23

Expert Solution

Answer 24

Summary Introduction

c.

To determine:

The progeny of chinchilla parents 9 and 10.

Introduction:

The dominant allele always expresses itself either homozygous or in heterozygous condition. The recessive allele is only expressed in homozygous condition, not in heterozygous condition.