The possible phenotypes and their ratios for the cross between the parents HhAB × HhAB. Introduction: The human blood group is an example of codominance where the alleles for the two antigens A and B are equally dominant. It means that when the two antigens A and B are present, the blood group is AB whereas in the absence of both the antigens, the blood group is O.

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Answer 1

Question

Chapter 3, Problem 36QP

a.

Summary Introduction

To determine: The possible phenotypes and their ratios for the cross between the parents HhAB × HhAB.

Introduction: The human blood group is an example of codominance where the alleles for the two antigens A and B are equally dominant. It means that when the two antigens A and B are present, the blood group is AB whereas in the absence of both the antigens, the blood group is O.

b.

Summary Introduction

To determine: The genotype of the individuals with blood group O.

Introduction: The individuals with the blood group O lack the surface antigens for both the blood groups A and B. Therefore, the expression of type O blood group occurs when the individual inherits both the recessive alleles. It makes people with type O blood group to become universal donors.

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Answer 2

Question

Chapter 3, Problem 36QP

a.

Summary Introduction

To determine: The possible phenotypes and their ratios for the cross between the parents HhAB × HhAB.

Introduction: The human blood group is an example of codominance where the alleles for the two antigens A and B are equally dominant. It means that when the two antigens A and B are present, the blood group is AB whereas in the absence of both the antigens, the blood group is O.

b.

Summary Introduction

To determine: The genotype of the individuals with blood group O.

Introduction: The individuals with the blood group O lack the surface antigens for both the blood groups A and B. Therefore, the expression of type O blood group occurs when the individual inherits both the recessive alleles. It makes people with type O blood group to become universal donors.

Expert Solution & Answer

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Answer 3

Question

Chapter 3, Problem 36QP

a.

Summary Introduction

To determine: The possible phenotypes and their ratios for the cross between the parents HhAB × HhAB.

Introduction: The human blood group is an example of codominance where the alleles for the two antigens A and B are equally dominant. It means that when the two antigens A and B are present, the blood group is AB whereas in the absence of both the antigens, the blood group is O.

b.

Summary Introduction

To determine: The genotype of the individuals with blood group O.

Introduction: The individuals with the blood group O lack the surface antigens for both the blood groups A and B. Therefore, the expression of type O blood group occurs when the individual inherits both the recessive alleles. It makes people with type O blood group to become universal donors.

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Answer 4

Question

Chapter 3, Problem 36QP

a.

Summary Introduction

To determine: The possible phenotypes and their ratios for the cross between the parents HhAB × HhAB.

Introduction: The human blood group is an example of codominance where the alleles for the two antigens A and B are equally dominant. It means that when the two antigens A and B are present, the blood group is AB whereas in the absence of both the antigens, the blood group is O.

b.

Summary Introduction

To determine: The genotype of the individuals with blood group O.

Introduction: The individuals with the blood group O lack the surface antigens for both the blood groups A and B. Therefore, the expression of type O blood group occurs when the individual inherits both the recessive alleles. It makes people with type O blood group to become universal donors.

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Answer 5

Chapter 3, Problem 36QP

a.

Summary Introduction

To determine: The possible phenotypes and their ratios for the cross between the parents HhAB × HhAB.

Introduction: The human blood group is an example of codominance where the alleles for the two antigens A and B are equally dominant. It means that when the two antigens A and B are present, the blood group is AB whereas in the absence of both the antigens, the blood group is O.

b.

Summary Introduction

To determine: The genotype of the individuals with blood group O.

Introduction: The individuals with the blood group O lack the surface antigens for both the blood groups A and B. Therefore, the expression of type O blood group occurs when the individual inherits both the recessive alleles. It makes people with type O blood group to become universal donors.

Answer 6

Chapter 3, Problem 36QP

a.

Summary Introduction

To determine: The possible phenotypes and their ratios for the cross between the parents HhAB × HhAB.

Introduction: The human blood group is an example of codominance where the alleles for the two antigens A and B are equally dominant. It means that when the two antigens A and B are present, the blood group is AB whereas in the absence of both the antigens, the blood group is O.

Answer 7

Chapter 3, Problem 36QP

a.

Summary Introduction

To determine: The possible phenotypes and their ratios for the cross between the parents HhAB × HhAB.

Introduction: The human blood group is an example of codominance where the alleles for the two antigens A and B are equally dominant. It means that when the two antigens A and B are present, the blood group is AB whereas in the absence of both the antigens, the blood group is O.

Answer 8

b.

Summary Introduction

To determine: The genotype of the individuals with blood group O.

Introduction: The individuals with the blood group O lack the surface antigens for both the blood groups A and B. Therefore, the expression of type O blood group occurs when the individual inherits both the recessive alleles. It makes people with type O blood group to become universal donors.

Answer 9

b.

Summary Introduction

To determine: The genotype of the individuals with blood group O.

Introduction: The individuals with the blood group O lack the surface antigens for both the blood groups A and B. Therefore, the expression of type O blood group occurs when the individual inherits both the recessive alleles. It makes people with type O blood group to become universal donors.

Answer 10

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Answer 11

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Answer 12

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Answer 13

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Solution Summary: The author explains that the human blood group is an example of codominance where the alleles for the two antigens A and B are equally dominant.

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