Assortative mating a. affects genotype frequencies expected under Hardy–Weinberg equilibrium. b. affects allele frequencies expected under Hardy–Weinberg equilibrium. c. has no effect on the genotypic frequencies expected under Hardy–Weinberg equilibrium because it does not affect the relative proportion of alleles in a population. d. increases the frequency of heterozygous individuals above Hardy–Weinberg expectations.

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Answer 1

Textbook Question

Chapter 20, Problem 1U

Assortative mating

a. affects genotype frequencies expected under Hardy–Weinberg equilibrium.

b. affects allele frequencies expected under Hardy–Weinberg equilibrium.

c. has no effect on the genotypic frequencies expected under Hardy–Weinberg equilibrium because it does not affect the relative proportion of alleles in a population.

d. increases the frequency of heterozygous individuals above Hardy–Weinberg expectations.

Expert Solution & Answer

Summary Introduction

Introduction:

Assortive mating involves matting of phenotypically similar individuals. It is a type of non-random mating those results in the frequencies of particular genotypes and the allelic frequency of that population is different from the Hardy–Weinberg principle.

Answer to Problem 1U

Correct answer:

Assortive mating occurs when individuals choose their mates based on their resemblance each other on the basis of certain phenotype that upset the Hardy–Weinberg principle. Therefore option a. is correct.

Explanation of Solution

Reason for the correct statement:

Assortive matting involves mates of similar phenotype. Its effect is limited to genes that influence the phenotype and its impact on the overall population is limited by mating that is otherwise random.

Option a. is given as “affects genotype frequencies expected under Hardy–Weinberg equilibrium”.

As, the random mating is a requirement of genetic equilibrium whereas assortive mating affects the genotypic frequency within individuals as it select the mate based on similar traits and does not support the Hardy–Weinberg principle for genetic equilibrium.

Hence, the option a is correct.

Reasons for incorrect statements:

Option b. is given as “affects allele frequencies expected under Hardy–Weinberg equilibrium”.

Assortive mating affects the genotypic frequency not the allelic frequency as expected under Hardy-Weinberg equilibrium. So it is a wrong answer.

Option c. is given as “has no effect on the genotypic frequencies expected under Hardy–Weinberg equilibrium because it does not affect the relative proportion of alleles in a population”.

Assortive mating occurs between the individual of similar traits it affects the genotypic frequency and not the allelic frequency in a population as expected under Hardy-Weinberg equilibrium. So it is a wrong answer.

Option d. is given as “increases the frequency of heterozygous individuals above Hardy–Weinberg expectations”.

Assortative mating results when individuals mate with partners that are like themselves in certain phenotypic characters, it results in fewer heterozygotes than Hardy-Weinberg predicts. So it is a wrong answer.

Hence options b, c, and d are incorrect.

Conclusion

Assortative mating affects genotype frequencies expected under Hardy–Weinberg equilibrium.

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Students have asked these similar questions

A) Explain why we use the concept of Hardy-Weinberg Equilibrium if populations are never stable? B) What do the mathematical results tell us if the allele frequencies do not match our predictions? (In other words, if you have extra spotted fish in a generation, what has happened?)

Which statement best summarizes why genetic drift tends to impact small populations more than large populations? A. Small populations have a heterozygote advantage because heterozygotes are more common than homozygotes. B. Small populations have a smaller gene pool, so random changes influence them more. C. Small populations have a relatively large gene pool, so the founder effect stabilizes their alleles.D. Small populations tend to experience directional selection, making one phenotype more common.

What affect will inbreeding tend to have on genotypic frequencies in a population? a) It will increase the frequency of genotypes that produce a dominant phenotype. b) It will decrease the frequency of genotypes that produce a dominant phenotype. c) It will increase the frequency of homozygous genotypes. d) It will increase the frequency of heterozygous genotypes.

Answer 2

Textbook Question

Chapter 20, Problem 1U

Assortative mating

a. affects genotype frequencies expected under Hardy–Weinberg equilibrium.

b. affects allele frequencies expected under Hardy–Weinberg equilibrium.

c. has no effect on the genotypic frequencies expected under Hardy–Weinberg equilibrium because it does not affect the relative proportion of alleles in a population.

d. increases the frequency of heterozygous individuals above Hardy–Weinberg expectations.

Expert Solution & Answer

Summary Introduction

Introduction:

Assortive mating involves matting of phenotypically similar individuals. It is a type of non-random mating those results in the frequencies of particular genotypes and the allelic frequency of that population is different from the Hardy–Weinberg principle.

Answer to Problem 1U

Correct answer:

Assortive mating occurs when individuals choose their mates based on their resemblance each other on the basis of certain phenotype that upset the Hardy–Weinberg principle. Therefore option a. is correct.

Explanation of Solution

Reason for the correct statement:

Assortive matting involves mates of similar phenotype. Its effect is limited to genes that influence the phenotype and its impact on the overall population is limited by mating that is otherwise random.

Option a. is given as “affects genotype frequencies expected under Hardy–Weinberg equilibrium”.

As, the random mating is a requirement of genetic equilibrium whereas assortive mating affects the genotypic frequency within individuals as it select the mate based on similar traits and does not support the Hardy–Weinberg principle for genetic equilibrium.

Hence, the option a is correct.

Reasons for incorrect statements:

Option b. is given as “affects allele frequencies expected under Hardy–Weinberg equilibrium”.

Assortive mating affects the genotypic frequency not the allelic frequency as expected under Hardy-Weinberg equilibrium. So it is a wrong answer.

Option c. is given as “has no effect on the genotypic frequencies expected under Hardy–Weinberg equilibrium because it does not affect the relative proportion of alleles in a population”.

Assortive mating occurs between the individual of similar traits it affects the genotypic frequency and not the allelic frequency in a population as expected under Hardy-Weinberg equilibrium. So it is a wrong answer.

Option d. is given as “increases the frequency of heterozygous individuals above Hardy–Weinberg expectations”.

Assortative mating results when individuals mate with partners that are like themselves in certain phenotypic characters, it results in fewer heterozygotes than Hardy-Weinberg predicts. So it is a wrong answer.

Hence options b, c, and d are incorrect.

Conclusion

Assortative mating affects genotype frequencies expected under Hardy–Weinberg equilibrium.

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Answer 3

Textbook Question

Chapter 20, Problem 1U

Assortative mating

a. affects genotype frequencies expected under Hardy–Weinberg equilibrium.

b. affects allele frequencies expected under Hardy–Weinberg equilibrium.

c. has no effect on the genotypic frequencies expected under Hardy–Weinberg equilibrium because it does not affect the relative proportion of alleles in a population.

d. increases the frequency of heterozygous individuals above Hardy–Weinberg expectations.

Expert Solution & Answer

Summary Introduction

Introduction:

Assortive mating involves matting of phenotypically similar individuals. It is a type of non-random mating those results in the frequencies of particular genotypes and the allelic frequency of that population is different from the Hardy–Weinberg principle.

Answer to Problem 1U

Correct answer:

Assortive mating occurs when individuals choose their mates based on their resemblance each other on the basis of certain phenotype that upset the Hardy–Weinberg principle. Therefore option a. is correct.

Explanation of Solution

Reason for the correct statement:

Assortive matting involves mates of similar phenotype. Its effect is limited to genes that influence the phenotype and its impact on the overall population is limited by mating that is otherwise random.

Option a. is given as “affects genotype frequencies expected under Hardy–Weinberg equilibrium”.

As, the random mating is a requirement of genetic equilibrium whereas assortive mating affects the genotypic frequency within individuals as it select the mate based on similar traits and does not support the Hardy–Weinberg principle for genetic equilibrium.

Hence, the option a is correct.

Reasons for incorrect statements:

Option b. is given as “affects allele frequencies expected under Hardy–Weinberg equilibrium”.

Assortive mating affects the genotypic frequency not the allelic frequency as expected under Hardy-Weinberg equilibrium. So it is a wrong answer.

Option c. is given as “has no effect on the genotypic frequencies expected under Hardy–Weinberg equilibrium because it does not affect the relative proportion of alleles in a population”.

Assortive mating occurs between the individual of similar traits it affects the genotypic frequency and not the allelic frequency in a population as expected under Hardy-Weinberg equilibrium. So it is a wrong answer.

Option d. is given as “increases the frequency of heterozygous individuals above Hardy–Weinberg expectations”.

Assortative mating results when individuals mate with partners that are like themselves in certain phenotypic characters, it results in fewer heterozygotes than Hardy-Weinberg predicts. So it is a wrong answer.

Hence options b, c, and d are incorrect.

Conclusion

Assortative mating affects genotype frequencies expected under Hardy–Weinberg equilibrium.

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Answer 4

Textbook Question

Chapter 20, Problem 1U

Assortative mating

a. affects genotype frequencies expected under Hardy–Weinberg equilibrium.

b. affects allele frequencies expected under Hardy–Weinberg equilibrium.

c. has no effect on the genotypic frequencies expected under Hardy–Weinberg equilibrium because it does not affect the relative proportion of alleles in a population.

d. increases the frequency of heterozygous individuals above Hardy–Weinberg expectations.

Expert Solution & Answer

Summary Introduction

Introduction:

Assortive mating involves matting of phenotypically similar individuals. It is a type of non-random mating those results in the frequencies of particular genotypes and the allelic frequency of that population is different from the Hardy–Weinberg principle.

Answer to Problem 1U

Correct answer:

Assortive mating occurs when individuals choose their mates based on their resemblance each other on the basis of certain phenotype that upset the Hardy–Weinberg principle. Therefore option a. is correct.

Explanation of Solution

Reason for the correct statement:

Assortive matting involves mates of similar phenotype. Its effect is limited to genes that influence the phenotype and its impact on the overall population is limited by mating that is otherwise random.

Option a. is given as “affects genotype frequencies expected under Hardy–Weinberg equilibrium”.

As, the random mating is a requirement of genetic equilibrium whereas assortive mating affects the genotypic frequency within individuals as it select the mate based on similar traits and does not support the Hardy–Weinberg principle for genetic equilibrium.

Hence, the option a is correct.

Reasons for incorrect statements:

Option b. is given as “affects allele frequencies expected under Hardy–Weinberg equilibrium”.

Assortive mating affects the genotypic frequency not the allelic frequency as expected under Hardy-Weinberg equilibrium. So it is a wrong answer.

Option c. is given as “has no effect on the genotypic frequencies expected under Hardy–Weinberg equilibrium because it does not affect the relative proportion of alleles in a population”.

Assortive mating occurs between the individual of similar traits it affects the genotypic frequency and not the allelic frequency in a population as expected under Hardy-Weinberg equilibrium. So it is a wrong answer.

Option d. is given as “increases the frequency of heterozygous individuals above Hardy–Weinberg expectations”.

Assortative mating results when individuals mate with partners that are like themselves in certain phenotypic characters, it results in fewer heterozygotes than Hardy-Weinberg predicts. So it is a wrong answer.

Hence options b, c, and d are incorrect.

Conclusion

Assortative mating affects genotype frequencies expected under Hardy–Weinberg equilibrium.

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Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Summary Introduction

Introduction:

Assortive mating involves matting of phenotypically similar individuals. It is a type of non-random mating those results in the frequencies of particular genotypes and the allelic frequency of that population is different from the Hardy–Weinberg principle.

Answer to Problem 1U

Correct answer:

Assortive mating occurs when individuals choose their mates based on their resemblance each other on the basis of certain phenotype that upset the Hardy–Weinberg principle. Therefore option a. is correct.

Explanation of Solution

Reason for the correct statement:

Assortive matting involves mates of similar phenotype. Its effect is limited to genes that influence the phenotype and its impact on the overall population is limited by mating that is otherwise random.

Option a. is given as “affects genotype frequencies expected under Hardy–Weinberg equilibrium”.

As, the random mating is a requirement of genetic equilibrium whereas assortive mating affects the genotypic frequency within individuals as it select the mate based on similar traits and does not support the Hardy–Weinberg principle for genetic equilibrium.

Hence, the option a is correct.

Reasons for incorrect statements:

Option b. is given as “affects allele frequencies expected under Hardy–Weinberg equilibrium”.

Assortive mating affects the genotypic frequency not the allelic frequency as expected under Hardy-Weinberg equilibrium. So it is a wrong answer.

Option c. is given as “has no effect on the genotypic frequencies expected under Hardy–Weinberg equilibrium because it does not affect the relative proportion of alleles in a population”.

Assortive mating occurs between the individual of similar traits it affects the genotypic frequency and not the allelic frequency in a population as expected under Hardy-Weinberg equilibrium. So it is a wrong answer.

Option d. is given as “increases the frequency of heterozygous individuals above Hardy–Weinberg expectations”.

Assortative mating results when individuals mate with partners that are like themselves in certain phenotypic characters, it results in fewer heterozygotes than Hardy-Weinberg predicts. So it is a wrong answer.

Hence options b, c, and d are incorrect.

Conclusion

Assortative mating affects genotype frequencies expected under Hardy–Weinberg equilibrium.

Answer 8

Expert Solution & Answer

Summary Introduction

Introduction:

Assortive mating involves matting of phenotypically similar individuals. It is a type of non-random mating those results in the frequencies of particular genotypes and the allelic frequency of that population is different from the Hardy–Weinberg principle.

Answer to Problem 1U

Correct answer:

Assortive mating occurs when individuals choose their mates based on their resemblance each other on the basis of certain phenotype that upset the Hardy–Weinberg principle. Therefore option a. is correct.

Explanation of Solution

Reason for the correct statement:

Assortive matting involves mates of similar phenotype. Its effect is limited to genes that influence the phenotype and its impact on the overall population is limited by mating that is otherwise random.

Option a. is given as “affects genotype frequencies expected under Hardy–Weinberg equilibrium”.

As, the random mating is a requirement of genetic equilibrium whereas assortive mating affects the genotypic frequency within individuals as it select the mate based on similar traits and does not support the Hardy–Weinberg principle for genetic equilibrium.

Hence, the option a is correct.

Reasons for incorrect statements:

Option b. is given as “affects allele frequencies expected under Hardy–Weinberg equilibrium”.

Assortive mating affects the genotypic frequency not the allelic frequency as expected under Hardy-Weinberg equilibrium. So it is a wrong answer.

Option c. is given as “has no effect on the genotypic frequencies expected under Hardy–Weinberg equilibrium because it does not affect the relative proportion of alleles in a population”.

Assortive mating occurs between the individual of similar traits it affects the genotypic frequency and not the allelic frequency in a population as expected under Hardy-Weinberg equilibrium. So it is a wrong answer.

Option d. is given as “increases the frequency of heterozygous individuals above Hardy–Weinberg expectations”.

Assortative mating results when individuals mate with partners that are like themselves in certain phenotypic characters, it results in fewer heterozygotes than Hardy-Weinberg predicts. So it is a wrong answer.

Hence options b, c, and d are incorrect.

Conclusion

Assortative mating affects genotype frequencies expected under Hardy–Weinberg equilibrium.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

Introduction:

Assortive mating involves matting of phenotypically similar individuals. It is a type of non-random mating those results in the frequencies of particular genotypes and the allelic frequency of that population is different from the Hardy–Weinberg principle.

Answer 12

Answer to Problem 1U

Correct answer:

Assortive mating occurs when individuals choose their mates based on their resemblance each other on the basis of certain phenotype that upset the Hardy–Weinberg principle. Therefore option a. is correct.

Answer 13

Explanation of Solution

Reason for the correct statement:

Assortive matting involves mates of similar phenotype. Its effect is limited to genes that influence the phenotype and its impact on the overall population is limited by mating that is otherwise random.

Option a. is given as “affects genotype frequencies expected under Hardy–Weinberg equilibrium”.

As, the random mating is a requirement of genetic equilibrium whereas assortive mating affects the genotypic frequency within individuals as it select the mate based on similar traits and does not support the Hardy–Weinberg principle for genetic equilibrium.

Hence, the option a is correct.

Reasons for incorrect statements:

Option b. is given as “affects allele frequencies expected under Hardy–Weinberg equilibrium”.

Assortive mating affects the genotypic frequency not the allelic frequency as expected under Hardy-Weinberg equilibrium. So it is a wrong answer.

Option c. is given as “has no effect on the genotypic frequencies expected under Hardy–Weinberg equilibrium because it does not affect the relative proportion of alleles in a population”.

Assortive mating occurs between the individual of similar traits it affects the genotypic frequency and not the allelic frequency in a population as expected under Hardy-Weinberg equilibrium. So it is a wrong answer.

Option d. is given as “increases the frequency of heterozygous individuals above Hardy–Weinberg expectations”.

Assortative mating results when individuals mate with partners that are like themselves in certain phenotypic characters, it results in fewer heterozygotes than Hardy-Weinberg predicts. So it is a wrong answer.

Hence options b, c, and d are incorrect.

Answer 14

Conclusion

Assortative mating affects genotype frequencies expected under Hardy–Weinberg equilibrium.

Answer 15

Ch. 20 - Assortative mating a. affects genotype frequencies...Ch. 20 - When the environment changes from year to year and...Ch. 20 - Many factors can limit the ability of natural...Ch. 20 - Stabilizing selection differs from directional...Ch. 20 - Founder effects and bottlenecks are a. expected...Ch. 20 - Relative fitness a. refers to the survival rate of...Ch. 20 - For natural selection to result in evolutionary...Ch. 20 - In a population of red (dominant allele) or white...Ch. 20 - Genetic drift and natural selection can both lead...Ch. 20 - Prob. 3A

Solution Summary: The author explains that assortive mating involves matting of phenotypically similar individuals. It affects the genotypic frequency and not the allelic frequency in a population.

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