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In Drosophila, the sex is determined by...

In Drosophila, the sex is determined by

A

the ratio of pairs of X-chromosomes to the pairs of autosomes

B

whether the egg is fertilised or develops parthenogenetically

C

the ratio of number of X-chromosomes to the set of autosomes

D

X and Y-chromosomes

Text Solution

Verified by Experts

The correct Answer is:
A
Calvin Bridges demonstrated that in Drosophilia, the sex is detemined by ratio of the number of X-chromosomes to the sets of autosomes. According to genic balances theory of sex-determination, Y-chromosome of Drosophilia does not important for the determination of sex.
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