The Living World
The Living World
9th Edition
ISBN: 9781259694042
Author: George B Johnson Professor
Publisher: McGraw-Hill Education
Question
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Chapter 10, Problem 4IA

a.

Summary Introduction

To explain: The copies of the woolly hair allele required to produce a detectable change in a person’s hair.

Introduction: Woolly-haired is a rare congenital disease that is indicated by extreme kinkiness of the hair. The fragile hair may be present at birth or appear in the first month. It may be due to homozygous or heterozygous mutations in the gene lipase H and lysophosphatidic acid receptor 6. These two genes work together for hair growth and texture. It may be autosomal dominant hereditary woolly hair or autosomal recessive familial woolly hair.

b.

Summary Introduction

To explain: Whether any woolly-hair homozygous individuals are present in the pedigree.

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