Zoology - Principles of Inheritance and Variation Question with Solution | TestHub

Morgan carried out several dihybrid crosses inDrosophilato study genes that were sex-linked. The crosses were similar to the dihybrid crosses carried out by Mendel in peas. For example, Morgan hybridised yellow-bodied, white-eyed females to brown-bodied, red-eyed males and intercrossed their F1 progeny. He observed that the two genes did not segregate independently of each other and the F2 ratio deviated extremely significantly from the 9:3:3:1 ratio (expected when the two genes are independent).