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A fruit fly is heterozygous for sex-linked genes. When mated with a normal female fruit fly, the male-specific chromosome will enter egg cells in the proportion of
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- 1: 1
- 1: 2
- 3: 1
- 7: 1
Correct Option: A
In sex determination, the male specific chromosome will have half as much chance as the other to enter the egg cell. Hence the proportion will be 1: 1.
