In fruit flies, sons of a cross between a white-eyed male and a red-eyed female always have red eyes.

Question

Quizplus · Accepted Answer

This statement is incorrect. The inheritance of eye color in fruit flies follows the laws of genetics, where eye color is determined by the interaction of genes located on the X and Y chromosomes. The white-eyed trait is a recessive trait located on the X chromosome, and the red-eyed trait is dominant. Therefore, the eye color of the offspring will depend on the genotype of both parents, and it is not always the case that sons of a cross between a white-eyed male and a red-eyed female will have red eyes.

In Fruit Flies, Sons of a Cross Between a White-Eyed