In Drosophila, the Genes for Body Coloration and Eye Size

Multiple Choice

In Drosophila, the genes for body coloration and eye size are on different chromosomes.Normal-colored bodies are dominant to ebony-colored (very dark) bodies, and normal-sized eyes are dominant to eyelessness.Line A is true breeding for normal bodies and normal eyes, whereas line B is true breeding for ebony bodies and eyelessness.From an F₂ cross between lines A and B, 800 flies are scored.How many F₂ flies are expected to have both normal body color and normal eyes?

A) 3
B) 50
C) 150
D) 450
E) 600