A white-eyed female fruit fly is mated to a red-eyed male.One of their progeny is a white-eyed female.What is the likely karyotype of this white-eyed offspring?

Question

Quizplus · Accepted Answer

The white-eyed female offspring likely has a karyotype of XXY. In fruit flies, the white-eye trait is X-linked recessive. A white-eyed female (XwXw) mated with a red-eyed male (X+Y) can produce a white-eyed female offspring if nondisjunction occurs, resulting in an XXY karyotype.

A White-Eyed Female Fruit Fly Is Mated to a Red-Eyed