The null allele is defined as the allele that is caused by the mutation of the gene. The resulting copy of the gene is nonfunctional. There is complete lack of associated gene product due to the mutation and the product will not function properly.

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Chapter 16, Problem 11PIAT

Summary Introduction

Introduction:

The null allele is defined as the allele that is caused by the mutation of the gene. The resulting copy of the gene is nonfunctional. There is complete lack of associated gene product due to the mutation and the product will not function properly.

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In humans, the AMY1 gene produces the enzyme amylase in cells of the salivary glands. Amylase breaks down starch (a polysaccharide) into the sugar maltose (a disaccharide). People from cultures with diets high in starch produce more amylase than people from cultures with diets low in starch because of a mutation in the AMY1 gene. Explain in two to three sentences why the frequency of this AMY1 mutation would have increased in frequency in populations with a high starch diet.

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Answer 2

Question

Chapter 16, Problem 11PIAT

Summary Introduction

Introduction:

The null allele is defined as the allele that is caused by the mutation of the gene. The resulting copy of the gene is nonfunctional. There is complete lack of associated gene product due to the mutation and the product will not function properly.

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Answer 3

Question

Chapter 16, Problem 11PIAT

Summary Introduction

Introduction:

The null allele is defined as the allele that is caused by the mutation of the gene. The resulting copy of the gene is nonfunctional. There is complete lack of associated gene product due to the mutation and the product will not function properly.

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Answer 4

Question

Chapter 16, Problem 11PIAT

Summary Introduction

Introduction:

The null allele is defined as the allele that is caused by the mutation of the gene. The resulting copy of the gene is nonfunctional. There is complete lack of associated gene product due to the mutation and the product will not function properly.

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Answer 5

Chapter 16, Problem 11PIAT

Summary Introduction

Introduction:

The null allele is defined as the allele that is caused by the mutation of the gene. The resulting copy of the gene is nonfunctional. There is complete lack of associated gene product due to the mutation and the product will not function properly.

Answer 6

Chapter 16, Problem 11PIAT

Summary Introduction

Introduction:

The null allele is defined as the allele that is caused by the mutation of the gene. The resulting copy of the gene is nonfunctional. There is complete lack of associated gene product due to the mutation and the product will not function properly.

Answer 7

Chapter 16, Problem 11PIAT

Summary Introduction

Introduction:

The null allele is defined as the allele that is caused by the mutation of the gene. The resulting copy of the gene is nonfunctional. There is complete lack of associated gene product due to the mutation and the product will not function properly.

Answer 8

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Answer 11

Ch. 16 - 2. Which of the following is an important...Ch. 16 - Prob. 3TYK Ch. 16 - A minimal genetic code requires only 21 codons–one...Ch. 16 - MODEL Draw a hypothetical metabolic pathway in...Ch. 16 - Prob. 11PIAT Ch. 16 - Prob. 12PIAT Ch. 16 - 13. A small portion of the human transport protein...Ch. 16 - Prob. 14PIAT

The null allele is defined as the allele that is caused by the mutation of the gene. The resulting copy of the gene is nonfunctional. There is complete lack of associated gene product due to the mutation and the product will not function properly.

Solution Summary: The author explains that the null allele is produced in the zebrafish due to the frameshift mutation, not by missense or silent mutations.

Concept explainers

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Introduction:

The null allele is defined as the allele that is caused by the mutation of the gene. The resulting copy of the gene is nonfunctional. There is complete lack of associated gene product due to the mutation and the product will not function properly.

Want to see the full answer?

Chapter 16 Solutions

The null allele is defined as the allele that is caused by the mutation of the gene. The resulting copy of the gene is nonfunctional. There is complete lack of associated gene product due to the mutation and the product will not function properly.

Solution Summary: The author explains that the null allele is produced in the zebrafish due to the frameshift mutation, not by missense or silent mutations.

Concept explainers

Videos

Introduction: The null allele is defined as the allele that is caused by the mutation of the gene. The resulting copy of the gene is nonfunctional. There is complete lack of associated gene product due to the mutation and the product will not function properly.

Want to see the full answer?

Chapter 16 Solutions

Introduction:

The null allele is defined as the allele that is caused by the mutation of the gene. The resulting copy of the gene is nonfunctional. There is complete lack of associated gene product due to the mutation and the product will not function properly.