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Meiosis Explains Mendel’s Results: Genes Are on Chromosomes Construct a pedigree, given the following information. Mary is 16 weeks pregnant and was referred for genetic counseling because of advanced maternal age. Mary has one daughter, Sarah, who is 5 years old. Mary has three older sisters and four younger brothers. The two oldest sisters are married, and each has one son. All her brothers are married, but none has any children. Mary’s parents are both alive, and she has two maternal uncles and three paternal aunts. Mary’s husband, John, has two brothers, one older and one younger, neither of whom is married. John’s mother is alive, but his father is deceased.

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Human Heredity: Principles and Iss...

11th Edition
Michael Cummings
Publisher: Cengage Learning
ISBN: 9781305251052

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Section
BuyFindarrow_forward

Human Heredity: Principles and Iss...

11th Edition
Michael Cummings
Publisher: Cengage Learning
ISBN: 9781305251052
Chapter 3, Problem 27QP
Textbook Problem
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Meiosis Explains Mendel’s Results: Genes Are on Chromosomes

Construct a pedigree, given the following information. Mary is 16 weeks pregnant and was referred for genetic counseling because of advanced maternal age. Mary has one daughter, Sarah, who is 5 years old. Mary has three older sisters and four younger brothers. The two oldest sisters are married, and each has one son. All her brothers are married, but none has any children.

Mary’s parents are both alive, and she has two maternal uncles and three paternal aunts. Mary’s husband, John, has two brothers, one older and one younger, neither of whom is married. John’s mother is alive, but his father is deceased.

Summary Introduction

To predict: The pedigree chart for the family based on the given information.

Introduction: The pedigree chart helps to depict the complete history of the pattern of inheritance of genetic disease from one generation to another generation. The inheritable genetic disease is either autosomal dominant or recessive or sex-linked based on which the probability of disease in a future generation can be predicted.

Explanation of Solution

Pictorial representation: Fig.1: The Pedigree chart is representing Mary’s family.

Fig.2: The pedigree chart for John's family

Fig.1: The Pedigree chart is representing Mary’s family.

Fig.2: The pedigree chart for John's family

The pedigree chart is based on the information where the individual named, Mary, who is 16 weeks pregnant and has a 5-year-old daughter...

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Chapter 3 Solutions

Human Heredity: Principles and Issues (MindTap Course List)
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