In Drosophila, the sex is determined by...

In Drosophila, the sex is determined by

A

whether the egg is fertilized or develops parthenogene-tically

B

the ratio of pairs of X-chromosomes to the pairs of auto-somes

C

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

D

X and Y-chromosomes

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The correct Answer is:

C

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