a. To determine: The genotype of the mutant plant. Introduction: The mutant plant has abnormal flower morphology. The flower of the mutant plant does not have petals, anthers, or carpels and formed entirely of sepals.

Question

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Answer 1

Question

Chapter 3, Problem 44P

Summary Introduction

a.

To determine:

The genotype of the mutant plant.

Introduction:

The mutant plant has abnormal flower morphology. The flower of the mutant plant does not have petals, anthers, or carpels and formed entirely of sepals.

Summary Introduction

b.

To determine:

The expected fraction of normal plants among the F₂ in a cross of type AAbbcc×aaBBCC.

Introduction:

For the normal flower morphology, the plant needs only single dominant allele of any one of the three genes.

Summary Introduction

c.

To determine:

The model that describes the way Arabidopsis thaliana genome acquired redundant genes.

Introduction:

The genes that perform the same function are called redundant genes. This type of gene arises from gene duplication.

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Can you answer both questions please (b) Based on the ABC model, what would be the predicted phenotype of a double AB mutant? (c) In developing flowers of dioecious Spinach and Thalictrum, stamens are not developed in female flowers, and carpels are not developed in male flowers. What is the simplest model of ABC class gene expression that might explain this?

Explain how (a) the absence of class B gene expression produces the flower structures seen in class B mutants (see Figure 22.15c) and (b) the absence of class C gene expression produces the structures seen in class C mutants (see Figure 22.15d).

Can you answer both questions please (b) Based on the ABC model, what would be the predicted phenotype of a double AB mutant? (c) In developing flowers of dioecious Spinach and Thalictrum, stamens are not developed in female flowers, and carpels are not developed in male flowers. What is the simplest model of ABC class gene expression that might explain this? Whorl 1 Whorl 2 Whorl 3 Whorl 4 Wild type sepals petals stamens carpels A class gene Carpels stamens stamen carpel mutants B class gene Sepal Sepal carpel carpel C class gene Sepal petal petal sepal mutants mutants

Answer 2

Question

Chapter 3, Problem 44P

Summary Introduction

a.

To determine:

The genotype of the mutant plant.

Introduction:

The mutant plant has abnormal flower morphology. The flower of the mutant plant does not have petals, anthers, or carpels and formed entirely of sepals.

Summary Introduction

b.

To determine:

The expected fraction of normal plants among the F₂ in a cross of type AAbbcc×aaBBCC.

Introduction:

For the normal flower morphology, the plant needs only single dominant allele of any one of the three genes.

Summary Introduction

c.

To determine:

The model that describes the way Arabidopsis thaliana genome acquired redundant genes.

Introduction:

The genes that perform the same function are called redundant genes. This type of gene arises from gene duplication.

Expert Solution & Answer

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Answer 3

Question

Chapter 3, Problem 44P

Summary Introduction

a.

To determine:

The genotype of the mutant plant.

Introduction:

The mutant plant has abnormal flower morphology. The flower of the mutant plant does not have petals, anthers, or carpels and formed entirely of sepals.

Summary Introduction

b.

To determine:

The expected fraction of normal plants among the F₂ in a cross of type AAbbcc×aaBBCC.

Introduction:

For the normal flower morphology, the plant needs only single dominant allele of any one of the three genes.

Summary Introduction

c.

To determine:

The model that describes the way Arabidopsis thaliana genome acquired redundant genes.

Introduction:

The genes that perform the same function are called redundant genes. This type of gene arises from gene duplication.

Expert Solution & Answer

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Answer 4

Question

Chapter 3, Problem 44P

Summary Introduction

a.

To determine:

The genotype of the mutant plant.

Introduction:

The mutant plant has abnormal flower morphology. The flower of the mutant plant does not have petals, anthers, or carpels and formed entirely of sepals.

Summary Introduction

b.

To determine:

The expected fraction of normal plants among the F₂ in a cross of type AAbbcc×aaBBCC.

Introduction:

For the normal flower morphology, the plant needs only single dominant allele of any one of the three genes.

Summary Introduction

c.

To determine:

The model that describes the way Arabidopsis thaliana genome acquired redundant genes.

Introduction:

The genes that perform the same function are called redundant genes. This type of gene arises from gene duplication.

Expert Solution & Answer

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Answer 5

Chapter 3, Problem 44P

Summary Introduction

a.

To determine:

The genotype of the mutant plant.

Introduction:

The mutant plant has abnormal flower morphology. The flower of the mutant plant does not have petals, anthers, or carpels and formed entirely of sepals.

Summary Introduction

b.

To determine:

The expected fraction of normal plants among the F₂ in a cross of type AAbbcc×aaBBCC.

Introduction:

For the normal flower morphology, the plant needs only single dominant allele of any one of the three genes.

Summary Introduction

c.

To determine:

The model that describes the way Arabidopsis thaliana genome acquired redundant genes.

Introduction:

The genes that perform the same function are called redundant genes. This type of gene arises from gene duplication.

Answer 6

Chapter 3, Problem 44P

Summary Introduction

a.

To determine:

The genotype of the mutant plant.

Introduction:

The mutant plant has abnormal flower morphology. The flower of the mutant plant does not have petals, anthers, or carpels and formed entirely of sepals.

Answer 7

Chapter 3, Problem 44P

Summary Introduction

a.

To determine:

The genotype of the mutant plant.

Introduction:

The mutant plant has abnormal flower morphology. The flower of the mutant plant does not have petals, anthers, or carpels and formed entirely of sepals.

Answer 8

Summary Introduction

b.

To determine:

The expected fraction of normal plants among the F₂ in a cross of type AAbbcc×aaBBCC.

Introduction:

For the normal flower morphology, the plant needs only single dominant allele of any one of the three genes.

Answer 9

Summary Introduction

b.

To determine:

The expected fraction of normal plants among the F₂ in a cross of type AAbbcc×aaBBCC.

Introduction:

For the normal flower morphology, the plant needs only single dominant allele of any one of the three genes.

Answer 10

Summary Introduction

c.

To determine:

The model that describes the way Arabidopsis thaliana genome acquired redundant genes.

Introduction:

The genes that perform the same function are called redundant genes. This type of gene arises from gene duplication.

Answer 11

Summary Introduction

c.

To determine:

The model that describes the way Arabidopsis thaliana genome acquired redundant genes.

Introduction:

The genes that perform the same function are called redundant genes. This type of gene arises from gene duplication.

Answer 12

Expert Solution & Answer

Answer 13

Expert Solution & Answer

Answer 14

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Answer 15

Ch. 3 - For each of the terms in the left column, choose...Ch. 3 - In four-oclocks, the allele for red flowers is...Ch. 3 - The Aa heterozygous snapdragons in Fig. 3.3 are...Ch. 3 - Recall from Chapter 2 Fig. 2.20 that Mendels R...Ch. 3 - In the fruit fly Drosophila melanogaster, very...Ch. 3 - A cross between two plants that both have yellow...Ch. 3 - In radishes, color and shape are each controlled...Ch. 3 - A wild legume with white flowers and long pods is...Ch. 3 - Assuming no involvement of the Bombay phenotype in...Ch. 3 - Several genes in humans in addition to the ABO...

a. To determine: The genotype of the mutant plant. Introduction: The mutant plant has abnormal flower morphology. The flower of the mutant plant does not have petals, anthers, or carpels and formed entirely of sepals.

Solution Summary: The author explains that the mutant plant does not have petals, anthers, or carpels and has recessive mutant alleles a, b, and c.

a.

To determine:

The genotype of the mutant plant.

Introduction:

The mutant plant has abnormal flower morphology. The flower of the mutant plant does not have petals, anthers, or carpels and formed entirely of sepals.

b.

To determine:

The expected fraction of normal plants among the F₂ in a cross of type AAbbcc×aaBBCC.

Introduction:

For the normal flower morphology, the plant needs only single dominant allele of any one of the three genes.

c.

To determine:

The model that describes the way Arabidopsis thaliana genome acquired redundant genes.

Introduction:

The genes that perform the same function are called redundant genes. This type of gene arises from gene duplication.

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Chapter 3 Solutions

a. To determine: The genotype of the mutant plant. Introduction: The mutant plant has abnormal flower morphology. The flower of the mutant plant does not have petals, anthers, or carpels and formed entirely of sepals.

Solution Summary: The author explains that the mutant plant does not have petals, anthers, or carpels and has recessive mutant alleles a, b, and c.

a. To determine: The genotype of the mutant plant. Introduction: The mutant plant has abnormal flower morphology. The flower of the mutant plant does not have petals, anthers, or carpels and formed entirely of sepals.

b. To determine: The expected fraction of normal plants among the F2 in a cross of type AAbbcc×aaBBCC. Introduction: For the normal flower morphology, the plant needs only single dominant allele of any one of the three genes.

c. To determine: The model that describes the way Arabidopsis thaliana genome acquired redundant genes. Introduction: The genes that perform the same function are called redundant genes. This type of gene arises from gene duplication.

Want to see the full answer?

Chapter 3 Solutions

a.

To determine:

The genotype of the mutant plant.

Introduction:

The mutant plant has abnormal flower morphology. The flower of the mutant plant does not have petals, anthers, or carpels and formed entirely of sepals.

b.

To determine:

The expected fraction of normal plants among the F₂ in a cross of type AAbbcc×aaBBCC.

Introduction:

For the normal flower morphology, the plant needs only single dominant allele of any one of the three genes.

c.

To determine:

The model that describes the way Arabidopsis thaliana genome acquired redundant genes.

Introduction:

The genes that perform the same function are called redundant genes. This type of gene arises from gene duplication.