Normally each cell in humans has 46 chromosomes (23 pairs). Twenty-two pairs of chromosomes are autosomes and one pair is sex chromosome (X and Y). Any variations in chromosomal arrangements leading to defects can be identified by karyotyping, pedigree analysis, and DNA sequencing.

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Answer 1

Question

Chapter 16, Problem 1TYU

Summary Introduction

Introduction: Normally each cell in humans has 46 chromosomes (23 pairs). Twenty-two pairs of chromosomes are autosomes and one pair is sex chromosome (X and Y). Any variations in chromosomal arrangements leading to defects can be identified by karyotyping, pedigree analysis, and DNA sequencing.

Expert Solution & Answer

Answer to Problem 1TYU

Correct answer: A diagram of pedigree shows the expression of genetic traits in the members of two or more generations of a family. Hence, the correct answer is Option (e).

Explanation of Solution

Reason for the correct answer:

Option (e) is given as “the expression of genetic traits in the members of two or more generations of a family”. Pedigree represents the genetic family history to determine the risk or presence of a disease in the next generation. It is referred as a family tree that is drawn by tracing the history of variant phenotypes using certain symbols. It consists of shapes and lines that represent gender marriage and descendants. It can predict the occurrence of a disease in the next generations.

Hence, the correct answer is Option (e).

Reasons for incorrect answers:

Option (a) is given as, “controlled matings between members of different true-breeding strains”. This is referred as a monohybrid cross. Hence, Option (a) is incorrect.

Option (b) is given as, “the total genetic information in human cells”. Chromosomes, genes, and DNA constitute the total genetic information. A pedigree is formed based on the phenotypic variations in a gene or an organism from one generation to next generations. Hence, Option (b) is incorrect.

Option (c) is given as, “a comparison of DNA sequences among the genomes of humans and other species”. This is referred as a study of comparative genomics. A pedigree does not compare the genomes of different species. Hence, Option (c) is incorrect.

Option (d) is given as, “the subtle genetic differences among unrelated people”. A pedigree is formed based on the phenotypic variations in a gene or an organism from one generation to next generations. It does not relate to genotypic variations. Hence, Option (d) is incorrect.

Hence, Options (a), (b), (c), and (d) are incorrect.

Conclusion

A pedigree shows the expression of genetic traits among two or more generations of a family.

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Students have asked these similar questions

. In the plant Arabidopsis thaliana, a geneticist is interested in the development of trichomes (small projections). A large screen turns up two mutant plants (A and B) that have no trichomes, and these mutants seem to be potentially useful in studying trichome development. (If they were determined by single-gene mutations, then finding the normal and abnormal functions of these genes would be instructive.) Each plant is crossed with wild type; in both cases, the next generation (F1) had normal trichomes. When F1 plants were selfed, the resulting F2’s were as follows: F2 from mutant A: 602 normal; 198 no trichomes F2 from mutant B: 267 normal; 93 no trichomesa. What do these results show? Include proposed genotypes of all plants in your answer. b. Under your explanation to part a, is it possible to confidently predict the F1 from crossing the original mutant A with the original mutant B?

Match the numbered concepts to the lettered facts. Explain why each pair is the best match. (1) Gene Duplication (2) Molecular Clock (3) Pseudogene (4) SINES and LINES a. Different kinds of globin chains arose over time including myoglobin, alpha globin, beta globin 1, delta globin, and beta globin 2.b. The two human beta globin genes, 1 and 2, differ at 20 base pair sites; only beta gene 1 produces a functional protein.c. In human hemoglobin, the delta polypeptide chain differs by 39 amino acid sites vs. the beta chain.d. The human alpha globin gene and the mouse alpha globin gene are orthologous to each other.

EXERCISE 5 MENDELIAN TRAITS IN HUMANS 1 While most human traits are polygenic, the traits in the chart below have traditionally been considered Mendelian traits. More recent research has disputed the single-gene nature of some of these traits, but for the purpose of this exercise, assume that the following traits are Mendelian. Work with a partner to help each other determine your own phenotypes and possible genotypes for these traits. Write your answers in the chart. (Note: Refer to the table on p. 62 for information about these traits.) Mendelian Trait Cleft Chin (Dominant) Freckles (Dominant) Attached Earlobes (Recessive) Hitchhiker's Thumb (Recessive) Widow's Peak (Dominant) Your Your Possible Phenotype Genotype(s)

Answer 2

Question

Chapter 16, Problem 1TYU

Summary Introduction

Introduction: Normally each cell in humans has 46 chromosomes (23 pairs). Twenty-two pairs of chromosomes are autosomes and one pair is sex chromosome (X and Y). Any variations in chromosomal arrangements leading to defects can be identified by karyotyping, pedigree analysis, and DNA sequencing.

Expert Solution & Answer

Answer to Problem 1TYU

Correct answer: A diagram of pedigree shows the expression of genetic traits in the members of two or more generations of a family. Hence, the correct answer is Option (e).

Explanation of Solution

Reason for the correct answer:

Option (e) is given as “the expression of genetic traits in the members of two or more generations of a family”. Pedigree represents the genetic family history to determine the risk or presence of a disease in the next generation. It is referred as a family tree that is drawn by tracing the history of variant phenotypes using certain symbols. It consists of shapes and lines that represent gender marriage and descendants. It can predict the occurrence of a disease in the next generations.

Hence, the correct answer is Option (e).

Reasons for incorrect answers:

Option (a) is given as, “controlled matings between members of different true-breeding strains”. This is referred as a monohybrid cross. Hence, Option (a) is incorrect.

Option (b) is given as, “the total genetic information in human cells”. Chromosomes, genes, and DNA constitute the total genetic information. A pedigree is formed based on the phenotypic variations in a gene or an organism from one generation to next generations. Hence, Option (b) is incorrect.

Option (c) is given as, “a comparison of DNA sequences among the genomes of humans and other species”. This is referred as a study of comparative genomics. A pedigree does not compare the genomes of different species. Hence, Option (c) is incorrect.

Option (d) is given as, “the subtle genetic differences among unrelated people”. A pedigree is formed based on the phenotypic variations in a gene or an organism from one generation to next generations. It does not relate to genotypic variations. Hence, Option (d) is incorrect.

Hence, Options (a), (b), (c), and (d) are incorrect.

Conclusion

A pedigree shows the expression of genetic traits among two or more generations of a family.

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Answer 3

Question

Chapter 16, Problem 1TYU

Summary Introduction

Introduction: Normally each cell in humans has 46 chromosomes (23 pairs). Twenty-two pairs of chromosomes are autosomes and one pair is sex chromosome (X and Y). Any variations in chromosomal arrangements leading to defects can be identified by karyotyping, pedigree analysis, and DNA sequencing.

Expert Solution & Answer

Answer to Problem 1TYU

Correct answer: A diagram of pedigree shows the expression of genetic traits in the members of two or more generations of a family. Hence, the correct answer is Option (e).

Explanation of Solution

Reason for the correct answer:

Option (e) is given as “the expression of genetic traits in the members of two or more generations of a family”. Pedigree represents the genetic family history to determine the risk or presence of a disease in the next generation. It is referred as a family tree that is drawn by tracing the history of variant phenotypes using certain symbols. It consists of shapes and lines that represent gender marriage and descendants. It can predict the occurrence of a disease in the next generations.

Hence, the correct answer is Option (e).

Reasons for incorrect answers:

Option (a) is given as, “controlled matings between members of different true-breeding strains”. This is referred as a monohybrid cross. Hence, Option (a) is incorrect.

Option (b) is given as, “the total genetic information in human cells”. Chromosomes, genes, and DNA constitute the total genetic information. A pedigree is formed based on the phenotypic variations in a gene or an organism from one generation to next generations. Hence, Option (b) is incorrect.

Option (c) is given as, “a comparison of DNA sequences among the genomes of humans and other species”. This is referred as a study of comparative genomics. A pedigree does not compare the genomes of different species. Hence, Option (c) is incorrect.

Option (d) is given as, “the subtle genetic differences among unrelated people”. A pedigree is formed based on the phenotypic variations in a gene or an organism from one generation to next generations. It does not relate to genotypic variations. Hence, Option (d) is incorrect.

Hence, Options (a), (b), (c), and (d) are incorrect.

Conclusion

A pedigree shows the expression of genetic traits among two or more generations of a family.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Question

Chapter 16, Problem 1TYU

Summary Introduction

Introduction: Normally each cell in humans has 46 chromosomes (23 pairs). Twenty-two pairs of chromosomes are autosomes and one pair is sex chromosome (X and Y). Any variations in chromosomal arrangements leading to defects can be identified by karyotyping, pedigree analysis, and DNA sequencing.

Expert Solution & Answer

Answer to Problem 1TYU

Correct answer: A diagram of pedigree shows the expression of genetic traits in the members of two or more generations of a family. Hence, the correct answer is Option (e).

Explanation of Solution

Reason for the correct answer:

Option (e) is given as “the expression of genetic traits in the members of two or more generations of a family”. Pedigree represents the genetic family history to determine the risk or presence of a disease in the next generation. It is referred as a family tree that is drawn by tracing the history of variant phenotypes using certain symbols. It consists of shapes and lines that represent gender marriage and descendants. It can predict the occurrence of a disease in the next generations.

Hence, the correct answer is Option (e).

Reasons for incorrect answers:

Option (a) is given as, “controlled matings between members of different true-breeding strains”. This is referred as a monohybrid cross. Hence, Option (a) is incorrect.

Option (b) is given as, “the total genetic information in human cells”. Chromosomes, genes, and DNA constitute the total genetic information. A pedigree is formed based on the phenotypic variations in a gene or an organism from one generation to next generations. Hence, Option (b) is incorrect.

Option (c) is given as, “a comparison of DNA sequences among the genomes of humans and other species”. This is referred as a study of comparative genomics. A pedigree does not compare the genomes of different species. Hence, Option (c) is incorrect.

Option (d) is given as, “the subtle genetic differences among unrelated people”. A pedigree is formed based on the phenotypic variations in a gene or an organism from one generation to next generations. It does not relate to genotypic variations. Hence, Option (d) is incorrect.

Hence, Options (a), (b), (c), and (d) are incorrect.

Conclusion

A pedigree shows the expression of genetic traits among two or more generations of a family.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Chapter 16, Problem 1TYU

Summary Introduction

Introduction: Normally each cell in humans has 46 chromosomes (23 pairs). Twenty-two pairs of chromosomes are autosomes and one pair is sex chromosome (X and Y). Any variations in chromosomal arrangements leading to defects can be identified by karyotyping, pedigree analysis, and DNA sequencing.

Expert Solution & Answer

Answer to Problem 1TYU

Correct answer: A diagram of pedigree shows the expression of genetic traits in the members of two or more generations of a family. Hence, the correct answer is Option (e).

Explanation of Solution

Reason for the correct answer:

Option (e) is given as “the expression of genetic traits in the members of two or more generations of a family”. Pedigree represents the genetic family history to determine the risk or presence of a disease in the next generation. It is referred as a family tree that is drawn by tracing the history of variant phenotypes using certain symbols. It consists of shapes and lines that represent gender marriage and descendants. It can predict the occurrence of a disease in the next generations.

Hence, the correct answer is Option (e).

Reasons for incorrect answers:

Option (a) is given as, “controlled matings between members of different true-breeding strains”. This is referred as a monohybrid cross. Hence, Option (a) is incorrect.

Option (b) is given as, “the total genetic information in human cells”. Chromosomes, genes, and DNA constitute the total genetic information. A pedigree is formed based on the phenotypic variations in a gene or an organism from one generation to next generations. Hence, Option (b) is incorrect.

Option (c) is given as, “a comparison of DNA sequences among the genomes of humans and other species”. This is referred as a study of comparative genomics. A pedigree does not compare the genomes of different species. Hence, Option (c) is incorrect.

Option (d) is given as, “the subtle genetic differences among unrelated people”. A pedigree is formed based on the phenotypic variations in a gene or an organism from one generation to next generations. It does not relate to genotypic variations. Hence, Option (d) is incorrect.

Hence, Options (a), (b), (c), and (d) are incorrect.

Conclusion

A pedigree shows the expression of genetic traits among two or more generations of a family.

Answer 6

Chapter 16, Problem 1TYU

Summary Introduction

Introduction: Normally each cell in humans has 46 chromosomes (23 pairs). Twenty-two pairs of chromosomes are autosomes and one pair is sex chromosome (X and Y). Any variations in chromosomal arrangements leading to defects can be identified by karyotyping, pedigree analysis, and DNA sequencing.

Expert Solution & Answer

Answer to Problem 1TYU

Correct answer: A diagram of pedigree shows the expression of genetic traits in the members of two or more generations of a family. Hence, the correct answer is Option (e).

Explanation of Solution

Reason for the correct answer:

Option (e) is given as “the expression of genetic traits in the members of two or more generations of a family”. Pedigree represents the genetic family history to determine the risk or presence of a disease in the next generation. It is referred as a family tree that is drawn by tracing the history of variant phenotypes using certain symbols. It consists of shapes and lines that represent gender marriage and descendants. It can predict the occurrence of a disease in the next generations.

Hence, the correct answer is Option (e).

Reasons for incorrect answers:

Option (a) is given as, “controlled matings between members of different true-breeding strains”. This is referred as a monohybrid cross. Hence, Option (a) is incorrect.

Option (b) is given as, “the total genetic information in human cells”. Chromosomes, genes, and DNA constitute the total genetic information. A pedigree is formed based on the phenotypic variations in a gene or an organism from one generation to next generations. Hence, Option (b) is incorrect.

Option (c) is given as, “a comparison of DNA sequences among the genomes of humans and other species”. This is referred as a study of comparative genomics. A pedigree does not compare the genomes of different species. Hence, Option (c) is incorrect.

Option (d) is given as, “the subtle genetic differences among unrelated people”. A pedigree is formed based on the phenotypic variations in a gene or an organism from one generation to next generations. It does not relate to genotypic variations. Hence, Option (d) is incorrect.

Hence, Options (a), (b), (c), and (d) are incorrect.

Conclusion

A pedigree shows the expression of genetic traits among two or more generations of a family.

Answer 7

Chapter 16, Problem 1TYU

Summary Introduction

Introduction: Normally each cell in humans has 46 chromosomes (23 pairs). Twenty-two pairs of chromosomes are autosomes and one pair is sex chromosome (X and Y). Any variations in chromosomal arrangements leading to defects can be identified by karyotyping, pedigree analysis, and DNA sequencing.

Answer 8

Expert Solution & Answer

Answer to Problem 1TYU

Correct answer: A diagram of pedigree shows the expression of genetic traits in the members of two or more generations of a family. Hence, the correct answer is Option (e).

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Reason for the correct answer:

Option (e) is given as “the expression of genetic traits in the members of two or more generations of a family”. Pedigree represents the genetic family history to determine the risk or presence of a disease in the next generation. It is referred as a family tree that is drawn by tracing the history of variant phenotypes using certain symbols. It consists of shapes and lines that represent gender marriage and descendants. It can predict the occurrence of a disease in the next generations.

Hence, the correct answer is Option (e).

Reasons for incorrect answers:

Option (a) is given as, “controlled matings between members of different true-breeding strains”. This is referred as a monohybrid cross. Hence, Option (a) is incorrect.

Option (b) is given as, “the total genetic information in human cells”. Chromosomes, genes, and DNA constitute the total genetic information. A pedigree is formed based on the phenotypic variations in a gene or an organism from one generation to next generations. Hence, Option (b) is incorrect.

Option (c) is given as, “a comparison of DNA sequences among the genomes of humans and other species”. This is referred as a study of comparative genomics. A pedigree does not compare the genomes of different species. Hence, Option (c) is incorrect.

Option (d) is given as, “the subtle genetic differences among unrelated people”. A pedigree is formed based on the phenotypic variations in a gene or an organism from one generation to next generations. It does not relate to genotypic variations. Hence, Option (d) is incorrect.

Hence, Options (a), (b), (c), and (d) are incorrect.