Homework SourseAll the progeny are gray All the progeny are yellow All the
All the progeny are gray.
All the progeny are yellow.
All the females are gray and all the males are yellow
All the females are yellow and all the males are gray.
All the females are gray; 1/2 of the males are yellow, 1/2 are gray.
| n Drosophila, yellow body is due to an X-linked gene (Xy) that is recessive to the gene for gray body (X+). A homozygous gray female is crossed with a yellow male. What are the phenotypes of the F1 progeny? | |
| All the progeny are gray. All the progeny are yellow. All the females are gray and all the males are yellow All the females are yellow and all the males are gray. All the females are gray; 1/2 of the males are yellow, 1/2 are gray. |
Solution
all the females are yellow and all the males are gray
| X | y | |
| X | XX | Xy(male) |
| + | X+(female) | +y(female) |
