Human Heredity: Principles and Issues (MindTap Course List)
Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN: 9781305251052
Author: Michael Cummings
Publisher: Cengage Learning
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Chapter 12, Problem 12QP

a.

Summary Introduction

To determine: The reason behind the father not developing retinoblastoma.

Introduction: Cancer is defined as the condition in which the cells start showing abnormal and uncontrolled growth. The main cause of this condition is due to the mutation in cells. These mutations affect the contact inhibition amongst cells. Retinoblastoma is cancer of eyes in which the retinoblast cells grow uncontrollably.

b.

Summary Introduction

To determine: The chance that the couple will have another child carrying the mutant allele.

Introduction: The hereditary form of cancer is responsible for bilateral retinoblastoma. Bilateral retinoblastoma is caused due to a mutation in the RB1 gene. This type of cancer occurs due to a mutation in the tumor-suppressing gene and the homozygous condition is required for cancer to occur

c.

Summary Introduction

To determine: Whether there a benefit to knowing that the son in the given case may develop retinoblastoma.

Introduction: The hereditary form of cancer is responsible for bilateral retinoblastoma. Bilateral retinoblastoma is caused due to a mutation in both the RB1 genes in a person. This type of cancer occurs due to a mutation in the tumor-suppressing gene and the homozygous condition is required for cancer to occur

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Human Heredity: Principles and Issues (MindTap Course List)

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