Question

When T.H. Morgan crossed the mutant male fruit fly with white eyes to normal females with red eyes, he found in the F1 offspring mostly?

Answer 1

In a cross between a white-eyed male and a heterozygous female for red eye color, the expected ratio of offspring is 1:1 with half having red eyes and half having white eyes.

Step-by-step explanation:

In a cross between a white-eyed male fruit fly and a female fruit fly that is heterozygous for red eye color, the expected ratio of offspring is 1:1. This means that half of the offspring will have red eyes and the other half will have white eyes. The white eye color is a recessive trait, so it will only be expressed in individuals that have two copies of the white eye gene.