The Hardy-Weinberg equation (relation between alleles and genotype frequencies) for gene that exists in three alleles designated by A1, A2, and A3 in population in which A1, A2, and A3 is represented by p, q, and r respectively. Introduction: The Hardy-Weinberg equation represents a mathematical model in which a single gene exists in two different forms of alleles represented by p and q. This equation is derived from the fact that at the time of fertilization, alleles combine randomly when diploid offspring are produced.

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Answer 1

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Chapter 23.1, Problem 1CS

Summary Introduction

To determine: The Hardy-Weinberg equation (relation between alleles and genotype frequencies) for gene that exists in three alleles designated by A1, A2, and A3 in population in which A1, A2, and A3 is represented by p, q, and r respectively.

Introduction: The Hardy-Weinberg equation represents a mathematical model in which a single gene exists in two different forms of alleles represented by p and q. This equation is derived from the fact that at the time of fertilization, alleles combine randomly when diploid offspring are produced.

Summary Introduction

To determine: The genotype frequencies of A2A2 homozygotes and A2A3 heterozygotes.

Introduction: The Hardy-Weinberg equation represents a mathematical model in which a single gene exists in two different forms of alleles represented by p and q. This equation is derived from the fact that at the time of fertilization, alleles combine randomly when diploid offspring are produced.

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EXERCISE 6 HARDY-WEINBERG EQUILIBRIUM Work in a small group or alone to complete this exercise. In human population X, consider the simple Mendelian trait for freckles. F is the dominant allele and f'is the recessive allele. Individuals who are homozygous dominant (FF) or heterozygous (F) for the trait express freckles. Individuals who are homozygous recessive (ff) for the trait do not express freckles. In this population, 30% (0.3) of the alleles are recessive (f ) and 70% (0.7) are dominant (F). 1. Use the Hardy-Weinberg equation to determine the genotype frequencies we should expect in the next generation. Be sure to show your work. 2. You have collected data on the observed genotype frequencies of the next generation. They are 60% FF, 30% Ff, and 10% ff. Based on these observations and your expectations, is this trait currently evolving in this population? Why or why not?

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)

Hardy-Weinberg Problems Please be sure to SHOW ALL WORK in order to get credit. This assignment will be graded for accuracy. *Hint: Remember what p and q represent. Determine first if I am asking for allele frequency or genotype/phenotype frequency. Then determine which equation is appropriate. What does p and q represent in the equations? Which equation do you use if I am asking for allele frequency? If the frequency of the recessive allele is 0.1, what is the frequency of the dominant allele? If the frequency of the dominant allele is 0.4, what is the frequency of the recessive allele? If the frequency of the dominant allele is 0.6, what is the frequency of the homozygous dominant genotype? If the frequency of the homozygous recessive genotype is 0.81, what is the frequency of the recessive allele? If the frequency of the homozygous dominant genotype is 0.25, what is the frequency of the dominant allele? If the frequency of the…

Answer 2

Question

Chapter 23.1, Problem 1CS

Summary Introduction

To determine: The Hardy-Weinberg equation (relation between alleles and genotype frequencies) for gene that exists in three alleles designated by A1, A2, and A3 in population in which A1, A2, and A3 is represented by p, q, and r respectively.

Introduction: The Hardy-Weinberg equation represents a mathematical model in which a single gene exists in two different forms of alleles represented by p and q. This equation is derived from the fact that at the time of fertilization, alleles combine randomly when diploid offspring are produced.

Summary Introduction

To determine: The genotype frequencies of A2A2 homozygotes and A2A3 heterozygotes.

Introduction: The Hardy-Weinberg equation represents a mathematical model in which a single gene exists in two different forms of alleles represented by p and q. This equation is derived from the fact that at the time of fertilization, alleles combine randomly when diploid offspring are produced.

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Answer 3

Question

Chapter 23.1, Problem 1CS

Summary Introduction

To determine: The Hardy-Weinberg equation (relation between alleles and genotype frequencies) for gene that exists in three alleles designated by A1, A2, and A3 in population in which A1, A2, and A3 is represented by p, q, and r respectively.

Introduction: The Hardy-Weinberg equation represents a mathematical model in which a single gene exists in two different forms of alleles represented by p and q. This equation is derived from the fact that at the time of fertilization, alleles combine randomly when diploid offspring are produced.

Summary Introduction

To determine: The genotype frequencies of A2A2 homozygotes and A2A3 heterozygotes.

Introduction: The Hardy-Weinberg equation represents a mathematical model in which a single gene exists in two different forms of alleles represented by p and q. This equation is derived from the fact that at the time of fertilization, alleles combine randomly when diploid offspring are produced.

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Answer 4

Question

Chapter 23.1, Problem 1CS

Summary Introduction

To determine: The Hardy-Weinberg equation (relation between alleles and genotype frequencies) for gene that exists in three alleles designated by A1, A2, and A3 in population in which A1, A2, and A3 is represented by p, q, and r respectively.

Introduction: The Hardy-Weinberg equation represents a mathematical model in which a single gene exists in two different forms of alleles represented by p and q. This equation is derived from the fact that at the time of fertilization, alleles combine randomly when diploid offspring are produced.

Summary Introduction

To determine: The genotype frequencies of A2A2 homozygotes and A2A3 heterozygotes.

Introduction: The Hardy-Weinberg equation represents a mathematical model in which a single gene exists in two different forms of alleles represented by p and q. This equation is derived from the fact that at the time of fertilization, alleles combine randomly when diploid offspring are produced.

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Answer 5

Chapter 23.1, Problem 1CS

Summary Introduction

To determine: The Hardy-Weinberg equation (relation between alleles and genotype frequencies) for gene that exists in three alleles designated by A1, A2, and A3 in population in which A1, A2, and A3 is represented by p, q, and r respectively.

Introduction: The Hardy-Weinberg equation represents a mathematical model in which a single gene exists in two different forms of alleles represented by p and q. This equation is derived from the fact that at the time of fertilization, alleles combine randomly when diploid offspring are produced.

Summary Introduction

To determine: The genotype frequencies of A2A2 homozygotes and A2A3 heterozygotes.

Introduction: The Hardy-Weinberg equation represents a mathematical model in which a single gene exists in two different forms of alleles represented by p and q. This equation is derived from the fact that at the time of fertilization, alleles combine randomly when diploid offspring are produced.

Answer 6

Chapter 23.1, Problem 1CS

Summary Introduction

To determine: The Hardy-Weinberg equation (relation between alleles and genotype frequencies) for gene that exists in three alleles designated by A1, A2, and A3 in population in which A1, A2, and A3 is represented by p, q, and r respectively.

Introduction: The Hardy-Weinberg equation represents a mathematical model in which a single gene exists in two different forms of alleles represented by p and q. This equation is derived from the fact that at the time of fertilization, alleles combine randomly when diploid offspring are produced.

Answer 7

Chapter 23.1, Problem 1CS

Summary Introduction

To determine: The Hardy-Weinberg equation (relation between alleles and genotype frequencies) for gene that exists in three alleles designated by A1, A2, and A3 in population in which A1, A2, and A3 is represented by p, q, and r respectively.

Introduction: The Hardy-Weinberg equation represents a mathematical model in which a single gene exists in two different forms of alleles represented by p and q. This equation is derived from the fact that at the time of fertilization, alleles combine randomly when diploid offspring are produced.

Answer 8

Summary Introduction

To determine: The genotype frequencies of A2A2 homozygotes and A2A3 heterozygotes.

Introduction: The Hardy-Weinberg equation represents a mathematical model in which a single gene exists in two different forms of alleles represented by p and q. This equation is derived from the fact that at the time of fertilization, alleles combine randomly when diploid offspring are produced.

Answer 9

Summary Introduction

To determine: The genotype frequencies of A2A2 homozygotes and A2A3 heterozygotes.

Introduction: The Hardy-Weinberg equation represents a mathematical model in which a single gene exists in two different forms of alleles represented by p and q. This equation is derived from the fact that at the time of fertilization, alleles combine randomly when diploid offspring are produced.

Answer 10

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Answer 13

Ch. 23.1 - Prob. 1CS Ch. 23.2 - Prob. 1CC Ch. 23.2 - Prob. 2CC Ch. 23.2 - Prob. 3CC Ch. 23.3 - Prob. 1CC Ch. 23.3 - Prob. 1EQ Ch. 23.3 - Prob. 2EQ Ch. 23.3 - Prob. 3EQ Ch. 23.4 - Genetic Drift Concept Check: How does the...Ch. 23.4 - Prob. 1CS

Solution Summary: The author explains the Hardy-Weinberg equation for three alleles of single genes which are represented by p, q, and r.

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