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Sex Determination in Humans

In Drosophila...

Question

In Drosophila, the Y-chromosome does not determine maleness but is necessary for fertility.

A

True

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B

False

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Solution

The correct option is A True

In Drosophila melanogaster, the Y chromosome does not trigger male development. Instead, sex is determined by the number of X chromosomes. The D. melanogaster Y chromosome does contain genes necessary for male fertility. The y chromosome in Drosophila is not involved in determining sex, rather it contains genes active in forming sperms in adults. So, the correct option is 'True'.

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