Answer Happy

The gene that encodes pigmentation on a fruit fly's body is on the X chromosome, near the tip. A normal fly has a black body, while the mutant has a yellow body. If a yellow-bodied female is crossed to a black-bodied male in the parental generation, what is the ratio of black bodied offspring to yellow bodied offspring in the F2 generation? 4-to-1 3-to-1 2-to-1 1-to-1
The gene that encodes pigmentation on a fruit fly's body is on the X chromosome, near the tip. A normal fly has a black body, while the mutant has a yellow body. If a black-bodied female is crossed to a yellow-bodied male in the parental generation, what is the ratio of black bodied offspring to yellow bodied offspring in the F2 generation? 4-to-1 3-to-1 2-to-1 1-to-1