A fruitfly is heterozygous-for sex-linked genes when mated with normal female fruit fly, the males specific chromosome will enter egg cell in the proportion

Q. A fruitfly is heterozygous-for sex-linked genes when mated with normal female fruit fly, the males specific chromosome will enter egg cell in the proportion

A.            3:1

B.            7:1

C.            1:1

D.            2:1

Answer: 1:1