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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 4.3, Problem 1EG
Textbook Problem
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Does a pedigree drawn from the available information offer strong support for the idea that Noah was homozygous for the recessive trait albinism? What other information about later generations would you like to have?

Summary Introduction

To explain: The way in which pedigree chart constructed from the given information supports the fact that Noah was homozygous recessive for the albinism trait.

Introduction: Noah was recorded as the first albino in the Book of Enoch the Prophet. According to this book, Noah’s flesh was as white as snow. It was also found from studies that Noah’s father and his mother (Betenos) were first cousins. Lamech was Methuselah’s son and Betenos sister of Methuselah’s sister. It was also determined that Methuselah and Methuselah’s sister were heterozygous carriers of recessive trait albinism.

Explanation of Solution

Pictorial representation: Fig. A represents the pedigree analysis of Noah’s family according to the provided information.

Fig.A: Pedigree chart of Noah’s family.

Albinism is an autosomal recessive disorder. The major symptom of this disorder includes the partial or complete absence of pigment in hair, skin, and eyes...

Summary Introduction

To explain: The way in which the characteristic of albinism would transmit in the later generations.

Introduction: Noah was recorded as the first albino in the Book of Enoch the Prophet. According to this book, Noah’s flesh was as white as snow. It was also found from studies that Noah’s father and his mother (Betenos) were first cousins. Lamech was Methuselah’s son and Betenos sister of Methuselah’s sister. It was also determined that Methuselah and Methuselah’s sister were heterozygous carriers of recessive trait albinism.

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