Question

Red-green color blindness is a human X-linked recessive disorder. Jill has normal color vision, but her father is color blind. Jill marries Tom, who also has normal color vision. Jill and Tom have a daughter who has Turner syndrome and is color blind. a. How did the daughter inherit color blindness

Answer 1

Jill's daughter with Turner syndrome inherited color blindness through an X-linked recessive inheritance pattern from her mother Jill, who is a carrier of the trait (having one normal and one color blind allele).

Step-by-step explanation:

Understanding Inheritance of Color Blindness

Red-green color blindness is an X-linked recessive trait, meaning that females must inherit two copies of the color blindness gene to express the condition. In the scenario provided, Jill has normal color vision, but her father is color blind, indicating that Jill is a carrier (XcX). When Jill and Tom, a man with normal vision (XY), have a daughter with Turner syndrome (which involves having a single X chromosome—XO), the daughter inherits her single X chromosome from her mother. Since Jill is a carrier of color blindness, the inherited X chromosome carries the color blindness trait, making Jill's daughter color blind.

Answer 2

From her mother's (Jill's) father.

Step-by-step explanation: