The most likely mode in the inheritance of each of these phenotypes . Introduction. The different forms of an allele in two organisms of the species can result in changes in their appearance even though their genetic composition is highly similar. These are gene polymorphisms that account for the change in the appearance of genetically similar organisms.

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Answer 1

Question

Chapter 3, Problem 48P

a.

Summary Introduction

To determine: The most likely mode in the inheritance of each of these phenotypes.

Introduction. The different forms of an allele in two organisms of the species can result in changes in their appearance even though their genetic composition is highly similar. These are gene polymorphisms that account for the change in the appearance of genetically similar organisms.

b.

Summary Introduction

To determine: The genotypes of all members in generation III.

Introduction. The law of segregation proposes that the alternative forms of the genes that are known as alleles separate during the formation of gametes. These gametes get one of the alleles that constitute the gene. Thus, during the formation of the zygote, these independent gametes come to fuse to provide the allele pair to the offspring.

c.

Summary Introduction

To determine: The probability of the first child to be dwarf and have a cataract and the probability of normal child.

Introduction. The dominant allele masks the expression of the recessive allele. The dominant allele is expressed in homozygous and heterozygous genotype while the recessive phenotype is only expressed under homozygous conditions.

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A genetic counsellor is working with a couple who have just had a child who has a debilitating autosomal recessive form of a disease termed epidemolysis bullosa (which causes severe external and internal skin fragility resulting in blistering etc). Neither parent has epidemolysis bullosa, nor does anyone in their families. What should the counsellor say to this couple? OA. "Because no one in either of your families has epidemolysis bullosa, you are not likely to have another baby with epidemolysis bullosa. You can safely have another child." OB. "Because you have had one child with epidemolysis bullosa, you must each carry the allele. Any child you have has a 50% chance of having the disease." OC. "Because you have had one child with epidemolysis bullosa, you must each carry the allele. Any child you have has a 25% chance of having the disease." OD. "Because you have had one child with epidemolysis bullosa, you must both carry the allele. However, since the chance of having an affected…

*22. Dent disease is a rare disorder of the kidney in which reabsorption of filtered solutes is impaired and there is progressive renal failure. R. R. Hoopes and colleagues studied mutations associated with Dent disease in the following family (R. R. Hoopes et al. 2005. American Journal of Human Genetics 76:260-267): II 2 3 4 5 II 3 4 5 6 7 8 IV a. On the basis of this pedigree, what is the most likely mode of inheritance for the disease? Explain your reasoning. b. Based your answer to part a, give the most likely genotypes for all family members in the pedigree.

There are six types of agglutinogen named C,D, E and c,d,e.the first three are dominant and last three are recessive.discuss

Answer 2

Question

Chapter 3, Problem 48P

a.

Summary Introduction

To determine: The most likely mode in the inheritance of each of these phenotypes.

Introduction. The different forms of an allele in two organisms of the species can result in changes in their appearance even though their genetic composition is highly similar. These are gene polymorphisms that account for the change in the appearance of genetically similar organisms.

b.

Summary Introduction

To determine: The genotypes of all members in generation III.

Introduction. The law of segregation proposes that the alternative forms of the genes that are known as alleles separate during the formation of gametes. These gametes get one of the alleles that constitute the gene. Thus, during the formation of the zygote, these independent gametes come to fuse to provide the allele pair to the offspring.

c.

Summary Introduction

To determine: The probability of the first child to be dwarf and have a cataract and the probability of normal child.

Introduction. The dominant allele masks the expression of the recessive allele. The dominant allele is expressed in homozygous and heterozygous genotype while the recessive phenotype is only expressed under homozygous conditions.

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Answer 3

Question

Chapter 3, Problem 48P

a.

Summary Introduction

To determine: The most likely mode in the inheritance of each of these phenotypes.

Introduction. The different forms of an allele in two organisms of the species can result in changes in their appearance even though their genetic composition is highly similar. These are gene polymorphisms that account for the change in the appearance of genetically similar organisms.

b.

Summary Introduction

To determine: The genotypes of all members in generation III.

Introduction. The law of segregation proposes that the alternative forms of the genes that are known as alleles separate during the formation of gametes. These gametes get one of the alleles that constitute the gene. Thus, during the formation of the zygote, these independent gametes come to fuse to provide the allele pair to the offspring.

c.

Summary Introduction

To determine: The probability of the first child to be dwarf and have a cataract and the probability of normal child.

Introduction. The dominant allele masks the expression of the recessive allele. The dominant allele is expressed in homozygous and heterozygous genotype while the recessive phenotype is only expressed under homozygous conditions.

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Answer 4

Question

Chapter 3, Problem 48P

a.

Summary Introduction

To determine: The most likely mode in the inheritance of each of these phenotypes.

Introduction. The different forms of an allele in two organisms of the species can result in changes in their appearance even though their genetic composition is highly similar. These are gene polymorphisms that account for the change in the appearance of genetically similar organisms.

b.

Summary Introduction

To determine: The genotypes of all members in generation III.

Introduction. The law of segregation proposes that the alternative forms of the genes that are known as alleles separate during the formation of gametes. These gametes get one of the alleles that constitute the gene. Thus, during the formation of the zygote, these independent gametes come to fuse to provide the allele pair to the offspring.

c.

Summary Introduction

To determine: The probability of the first child to be dwarf and have a cataract and the probability of normal child.

Introduction. The dominant allele masks the expression of the recessive allele. The dominant allele is expressed in homozygous and heterozygous genotype while the recessive phenotype is only expressed under homozygous conditions.

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Answer 5

Chapter 3, Problem 48P

a.

Summary Introduction

To determine: The most likely mode in the inheritance of each of these phenotypes.

Introduction. The different forms of an allele in two organisms of the species can result in changes in their appearance even though their genetic composition is highly similar. These are gene polymorphisms that account for the change in the appearance of genetically similar organisms.

b.

Summary Introduction

To determine: The genotypes of all members in generation III.

Introduction. The law of segregation proposes that the alternative forms of the genes that are known as alleles separate during the formation of gametes. These gametes get one of the alleles that constitute the gene. Thus, during the formation of the zygote, these independent gametes come to fuse to provide the allele pair to the offspring.

c.

Summary Introduction

To determine: The probability of the first child to be dwarf and have a cataract and the probability of normal child.

Introduction. The dominant allele masks the expression of the recessive allele. The dominant allele is expressed in homozygous and heterozygous genotype while the recessive phenotype is only expressed under homozygous conditions.

Answer 6

Chapter 3, Problem 48P

a.

Summary Introduction

To determine: The most likely mode in the inheritance of each of these phenotypes.

Introduction. The different forms of an allele in two organisms of the species can result in changes in their appearance even though their genetic composition is highly similar. These are gene polymorphisms that account for the change in the appearance of genetically similar organisms.

Answer 7

Chapter 3, Problem 48P

a.

Summary Introduction

To determine: The most likely mode in the inheritance of each of these phenotypes.

Introduction. The different forms of an allele in two organisms of the species can result in changes in their appearance even though their genetic composition is highly similar. These are gene polymorphisms that account for the change in the appearance of genetically similar organisms.

Answer 8

b.

Summary Introduction

To determine: The genotypes of all members in generation III.

Introduction. The law of segregation proposes that the alternative forms of the genes that are known as alleles separate during the formation of gametes. These gametes get one of the alleles that constitute the gene. Thus, during the formation of the zygote, these independent gametes come to fuse to provide the allele pair to the offspring.

Answer 9

b.

Summary Introduction

To determine: The genotypes of all members in generation III.

Introduction. The law of segregation proposes that the alternative forms of the genes that are known as alleles separate during the formation of gametes. These gametes get one of the alleles that constitute the gene. Thus, during the formation of the zygote, these independent gametes come to fuse to provide the allele pair to the offspring.

Answer 10

c.

Summary Introduction

To determine: The probability of the first child to be dwarf and have a cataract and the probability of normal child.

Introduction. The dominant allele masks the expression of the recessive allele. The dominant allele is expressed in homozygous and heterozygous genotype while the recessive phenotype is only expressed under homozygous conditions.

Answer 11

c.

Summary Introduction

To determine: The probability of the first child to be dwarf and have a cataract and the probability of normal child.

Introduction. The dominant allele masks the expression of the recessive allele. The dominant allele is expressed in homozygous and heterozygous genotype while the recessive phenotype is only expressed under homozygous conditions.

Answer 12

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Answer 13

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Answer 14

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Answer 15

Ch. 3 - Prob. 1P Ch. 3 - Prob. 2P Ch. 3 - Prob. 4P Ch. 3 - Prob. 5P Ch. 3 - Prob. 6P Ch. 3 - Prob. 7P Ch. 3 - Prob. 10P Ch. 3 - Prob. 11P Ch. 3 - Prob. 12P Ch. 3 - Prob. 13P

Solution Summary: The author explains that the different forms of an allele in two organisms of the species can result in changes in their appearance even though their genetic composition is highly similar.

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