The genotypes, phenotypes and expected proportions of the F1 and F2 generation. When a “homozygous gray female” is crossed with a yellow male and F1 are intercrossed to produce F2 progeny. Introduction: Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

Question

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Answer 1

Question

Chapter 4.2, Problem 24AQP

a.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation. When a “homozygous gray female” is crossed with a yellow male and F1 are intercrossed to produce F2 progeny.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

b.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when a “yellow female” is crossed with a “gray male”. The F1 are intercrossed to produce the F2 progeny.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

c.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when a yellow female is crossed with a gray male. The F1 females are backcrossed with gray males.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

d.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when F2 flies form part b mate randomly.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

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Answer 2

Question

Chapter 4.2, Problem 24AQP

a.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation. When a “homozygous gray female” is crossed with a yellow male and F1 are intercrossed to produce F2 progeny.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

b.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when a “yellow female” is crossed with a “gray male”. The F1 are intercrossed to produce the F2 progeny.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

c.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when a yellow female is crossed with a gray male. The F1 females are backcrossed with gray males.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

d.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when F2 flies form part b mate randomly.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

Expert Solution & Answer

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Answer 3

Question

Chapter 4.2, Problem 24AQP

a.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation. When a “homozygous gray female” is crossed with a yellow male and F1 are intercrossed to produce F2 progeny.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

b.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when a “yellow female” is crossed with a “gray male”. The F1 are intercrossed to produce the F2 progeny.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

c.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when a yellow female is crossed with a gray male. The F1 females are backcrossed with gray males.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

d.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when F2 flies form part b mate randomly.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

Expert Solution & Answer

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Answer 4

Question

Chapter 4.2, Problem 24AQP

a.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation. When a “homozygous gray female” is crossed with a yellow male and F1 are intercrossed to produce F2 progeny.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

b.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when a “yellow female” is crossed with a “gray male”. The F1 are intercrossed to produce the F2 progeny.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

c.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when a yellow female is crossed with a gray male. The F1 females are backcrossed with gray males.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

d.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when F2 flies form part b mate randomly.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

Expert Solution & Answer

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Answer 5

Chapter 4.2, Problem 24AQP

a.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation. When a “homozygous gray female” is crossed with a yellow male and F1 are intercrossed to produce F2 progeny.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

b.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when a “yellow female” is crossed with a “gray male”. The F1 are intercrossed to produce the F2 progeny.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

c.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when a yellow female is crossed with a gray male. The F1 females are backcrossed with gray males.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

d.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when F2 flies form part b mate randomly.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

Answer 6

Chapter 4.2, Problem 24AQP

a.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation. When a “homozygous gray female” is crossed with a yellow male and F1 are intercrossed to produce F2 progeny.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

Answer 7

Chapter 4.2, Problem 24AQP

a.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation. When a “homozygous gray female” is crossed with a yellow male and F1 are intercrossed to produce F2 progeny.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

Answer 8

b.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when a “yellow female” is crossed with a “gray male”. The F1 are intercrossed to produce the F2 progeny.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

Answer 9

b.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when a “yellow female” is crossed with a “gray male”. The F1 are intercrossed to produce the F2 progeny.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

Answer 10

c.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when a yellow female is crossed with a gray male. The F1 females are backcrossed with gray males.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

Answer 11

c.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when a yellow female is crossed with a gray male. The F1 females are backcrossed with gray males.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

Answer 12

d.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when F2 flies form part b mate randomly.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

Answer 13

d.

Summary Introduction

To determine:

The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when F2 flies form part b mate randomly.

Introduction:

Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.

Answer 14

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Answer 15

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Answer 16

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Answer 17

Ch. 4.1 - Prob. 1CC Ch. 4.1 - Prob. 2CC Ch. 4.1 - Prob. 3CC Ch. 4.1 - Prob. 4CC Ch. 4.1 - Prob. 1COQ Ch. 4.1 - Prob. 2COQ Ch. 4.1 - Prob. 3COQ Ch. 4.1 - Prob. 4COQ Ch. 4.1 - Prob. 5COQ Ch. 4.1 - Prob. 6COQ

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Chapter 4 Solutions