A sex-linked recessive allele rg causes a red-green colorblindness in humans. A normal woman whose father was colorblind marries a colorblind man. A. What genotypes are possible for the mother of the colorblind man? B. What are the chances that the first child from this marriage will be a colorblind boy? C. Of the girls born from this union, what proportion can be expected to be colorblind?
A sex-linked recessive allele rg causes a red-green colorblindness in humans. A normal woman whose father was colorblind marries a colorblind man. A. What genotypes are possible for the mother of the colorblind man? B. What are the chances that the first child from this marriage will be a colorblind boy? C. Of the girls born from this union, what proportion can be expected to be colorblind?
Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN:9781305251052
Author:Michael Cummings
Publisher:Michael Cummings
Chapter15: Genomes And Genomics
Section: Chapter Questions
Problem 2QP: Hemophilia and color blindness are both recessive conditions caused by genes on the X chromosome. To...
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A sex-linked recessive allele rg causes a red-green colorblindness in humans. A normal woman whose father was colorblind marries a colorblind man.
A. What genotypes are possible for the mother of the colorblind man?
B. What are the chances that the first child from this marriage will be a colorblind boy?
C. Of the girls born from this union, what proportion can be expected to be colorblind?
D. Of all the children of these parents
Expert Solution
Step 1 Introduction
Mostly the sex-linked diseases are X-linked ( unless stated otherwise). These alleles are found only in X chromosomes, thereby the women mostly become carriers of recessive alleles, and men become affected.
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