Answer to Question #290505 in Genetics for Sae

Question

Baldness(H^B) is dominant in males but recessive in females.  The normal gene (Hⁿ)

is dominant in females, but is recessive in males.  Explain how a bald offspring can be produced from the mating of normal female with a normal male.  Could these parents ever produce a bald girl?  Explain

Answer 1

When your mom and dad's cells combined to make you, you had a 50% chance of getting that X-linked baldness gene from your mother. Why is it a 50% chance? Remember, your mom has two X chromosomes (XX), and only one of those chromosomes is carrying the baldness gene