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...
icon
Related questions
Topic Video
Question

 

 

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.

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Patterns of inheritance
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Human Heredity: Principles and Issues (MindTap Co…
Human Heredity: Principles and Issues (MindTap Co…
Biology
ISBN:
9781305251052
Author:
Michael Cummings
Publisher:
Cengage Learning