Question

How does Thomas Hunt Morgan's experiment with fruit flies prove that gene traits are carried on chromosoms?

Answer 1

Ans. The chomosome theory of inheritance was proposed beofore it was proved experimentally by Sutton and Boveri published independently . After, the scientist  Thomas Hunt Morgan's by his experiment with the fruits flies proves this theory. T.H morgan saw that there is a mutation in a gene affecting fly eye color, making fly's eyes white, rather than their normal red. Thus, he found out that there is a different pattern of ineritance of the eye color with respect to male and female flies. As male have X and Y chromosomes and females have X and X chromosomes, it didnt took morgan too long to realize that eye color gene was being inherited in the same pattern as the X chromosome. Thus he concluded that the gene trait are carried on chromosomes.