NEET Biology question

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 fertilized or develops parthenogenetically
(C)The ratio of number of X-chromosomes to the set of autosomesCorrect
(D)X and Y-chromosomes

Answer: (C)

Solution

According to Bridges' genic balance theory, sex in *Drosophila* is determined by the ratio of the number of X-chromosomes to the number of complete haploid sets of autosomes (the X:A ratio), not simply by the

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Question ID VK-119677