Thomas Hunt Morgan found a white eyed mutant male drosophila among the normal red eyed kind. As it is found in the male.
So according to above explanation
<span>B.White eyes are lethal in male Drosophila, is the correct answer.</span>
This part of the excerpt seems to be correct as it reveals that the diet alone is responsible for his ninth birthday: "It had plenty of room to expand, thanks to the spare diet of the establishment; and perhaps to this circumstance may be attributed his having any ninth birth-day at all."
