The proportion of progeny that will be ww ee ff if F1 is testcrossed. Introduction: An autosomal recessive trait that is the individuals with a shaded in the symbol are homozygous recessive (aa) and show the recessive trait. A half-shaded symbol represents heterozygous individuals (Aa), and an unshaded symbol represents individuals who are homozygous dominant (AA).

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Answer 1

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Features of a Concept Features of a Concept Characteristics are discrete; that is, they are unitary. Genetic features have alternative forms, and each feature is inherited from one of the two parents. These are called alleles. One allele is dominant over the other allele. The dominant allele is reflected in the phenotype. Random segregation creates the gametes. The heterozygotic individuals produce gametes with an equal frequency of both alleles. Genes are unlinked; that is, different traits arise from the independent assortment.

Chapter 4, Problem 47P

a.

Summary Introduction

To determine: The proportion of progeny that will be ww ee ff if F1 is testcrossed.

Introduction: An autosomal recessive trait that is the individuals with a shaded in the symbol are homozygous recessive (aa) and show the recessive trait. A half-shaded symbol represents heterozygous individuals (Aa), and an unshaded symbol represents individuals who are homozygous dominant (AA).

b.

Summary Introduction

To determine: The progeny that will be ww ee ff if F1 is selfed.

Introduction: Mendelian inheritance is a biological inheritance following the laws formerly proposed by Gregor Mendel in 1865 and 1866 and re-discovered in 1900 and simplified by William Bateson. Also, these principles remained initially controversial.

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In corn, the cross WW ee FF × ww EE ff is made. The three loci are linked as follows:Assume no interference. a. If the F1 is testcrossed, what proportion of progeny will be ww ee ff? b. If the F1 is selfed, what proportion of progeny will be ww ee ff?

Mendel crossed peas having round seeds and yellow cotyledons with peas having wrinkled seeds and green cotyledons. All the F1 plants had round seeds with yellow cotyledons. Diagram this cross through the F2 generation, using both the Punnett square and forked-line methods.

A strain of Neurospora with the genotype H ⋅ I is crossedwith a strain with the genotype h ⋅ i. Half the progeny areH ⋅ I, and the other half are h ⋅ i. Explain how this outcome is possible.

Answer 2

Question

Features of a Concept Features of a Concept Characteristics are discrete; that is, they are unitary. Genetic features have alternative forms, and each feature is inherited from one of the two parents. These are called alleles. One allele is dominant over the other allele. The dominant allele is reflected in the phenotype. Random segregation creates the gametes. The heterozygotic individuals produce gametes with an equal frequency of both alleles. Genes are unlinked; that is, different traits arise from the independent assortment.

Chapter 4, Problem 47P

a.

Summary Introduction

To determine: The proportion of progeny that will be ww ee ff if F1 is testcrossed.

Introduction: An autosomal recessive trait that is the individuals with a shaded in the symbol are homozygous recessive (aa) and show the recessive trait. A half-shaded symbol represents heterozygous individuals (Aa), and an unshaded symbol represents individuals who are homozygous dominant (AA).

b.

Summary Introduction

To determine: The progeny that will be ww ee ff if F1 is selfed.

Introduction: Mendelian inheritance is a biological inheritance following the laws formerly proposed by Gregor Mendel in 1865 and 1866 and re-discovered in 1900 and simplified by William Bateson. Also, these principles remained initially controversial.

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Answer 3

Question

Features of a Concept Features of a Concept Characteristics are discrete; that is, they are unitary. Genetic features have alternative forms, and each feature is inherited from one of the two parents. These are called alleles. One allele is dominant over the other allele. The dominant allele is reflected in the phenotype. Random segregation creates the gametes. The heterozygotic individuals produce gametes with an equal frequency of both alleles. Genes are unlinked; that is, different traits arise from the independent assortment.

Chapter 4, Problem 47P

a.

Summary Introduction

To determine: The proportion of progeny that will be ww ee ff if F1 is testcrossed.

Introduction: An autosomal recessive trait that is the individuals with a shaded in the symbol are homozygous recessive (aa) and show the recessive trait. A half-shaded symbol represents heterozygous individuals (Aa), and an unshaded symbol represents individuals who are homozygous dominant (AA).

b.

Summary Introduction

To determine: The progeny that will be ww ee ff if F1 is selfed.

Introduction: Mendelian inheritance is a biological inheritance following the laws formerly proposed by Gregor Mendel in 1865 and 1866 and re-discovered in 1900 and simplified by William Bateson. Also, these principles remained initially controversial.

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Answer 4

Question

Features of a Concept Features of a Concept Characteristics are discrete; that is, they are unitary. Genetic features have alternative forms, and each feature is inherited from one of the two parents. These are called alleles. One allele is dominant over the other allele. The dominant allele is reflected in the phenotype. Random segregation creates the gametes. The heterozygotic individuals produce gametes with an equal frequency of both alleles. Genes are unlinked; that is, different traits arise from the independent assortment.

Chapter 4, Problem 47P

a.

Summary Introduction

To determine: The proportion of progeny that will be ww ee ff if F1 is testcrossed.

Introduction: An autosomal recessive trait that is the individuals with a shaded in the symbol are homozygous recessive (aa) and show the recessive trait. A half-shaded symbol represents heterozygous individuals (Aa), and an unshaded symbol represents individuals who are homozygous dominant (AA).

b.

Summary Introduction

To determine: The progeny that will be ww ee ff if F1 is selfed.

Introduction: Mendelian inheritance is a biological inheritance following the laws formerly proposed by Gregor Mendel in 1865 and 1866 and re-discovered in 1900 and simplified by William Bateson. Also, these principles remained initially controversial.

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Answer 5

Chapter 4, Problem 47P

a.

Summary Introduction

To determine: The proportion of progeny that will be ww ee ff if F1 is testcrossed.

Introduction: An autosomal recessive trait that is the individuals with a shaded in the symbol are homozygous recessive (aa) and show the recessive trait. A half-shaded symbol represents heterozygous individuals (Aa), and an unshaded symbol represents individuals who are homozygous dominant (AA).

b.

Summary Introduction

To determine: The progeny that will be ww ee ff if F1 is selfed.

Introduction: Mendelian inheritance is a biological inheritance following the laws formerly proposed by Gregor Mendel in 1865 and 1866 and re-discovered in 1900 and simplified by William Bateson. Also, these principles remained initially controversial.

Answer 6

Chapter 4, Problem 47P

a.

Summary Introduction

To determine: The proportion of progeny that will be ww ee ff if F1 is testcrossed.

Introduction: An autosomal recessive trait that is the individuals with a shaded in the symbol are homozygous recessive (aa) and show the recessive trait. A half-shaded symbol represents heterozygous individuals (Aa), and an unshaded symbol represents individuals who are homozygous dominant (AA).

Answer 7

Chapter 4, Problem 47P

a.

Summary Introduction

To determine: The proportion of progeny that will be ww ee ff if F1 is testcrossed.

Introduction: An autosomal recessive trait that is the individuals with a shaded in the symbol are homozygous recessive (aa) and show the recessive trait. A half-shaded symbol represents heterozygous individuals (Aa), and an unshaded symbol represents individuals who are homozygous dominant (AA).

Answer 8

b.

Summary Introduction

To determine: The progeny that will be ww ee ff if F1 is selfed.

Introduction: Mendelian inheritance is a biological inheritance following the laws formerly proposed by Gregor Mendel in 1865 and 1866 and re-discovered in 1900 and simplified by William Bateson. Also, these principles remained initially controversial.

Answer 9

b.

Summary Introduction

To determine: The progeny that will be ww ee ff if F1 is selfed.

Introduction: Mendelian inheritance is a biological inheritance following the laws formerly proposed by Gregor Mendel in 1865 and 1866 and re-discovered in 1900 and simplified by William Bateson. Also, these principles remained initially controversial.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 4 - Prob. 1P Ch. 4 - Prob. 5P Ch. 4 - Prob. 12P Ch. 4 - Prob. 13P Ch. 4 - Prob. 14P Ch. 4 - Prob. 15P Ch. 4 - Prob. 16P Ch. 4 - Prob. 17P Ch. 4 - Prob. 18P Ch. 4 - Prob. 19P

Solution Summary: The author explains that mendelian inheritance is a biological inheritance following the laws formerly proposed by Gregor Mendel in 1865 and 1866.

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