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Which of the following is true about Drosophila males?

Option: 1

They have two X chromosomes


Option: 2

They have one X chromosome


Option: 3

They have no X chromosomes


Option: 4

They have one Y chromosome


Answers (1)

best_answer

In Drosophila, males have one X chromosome and one Y chromosome. Females have two X chromosomes. The ratio of X chromosomes to the number of sets of autosomes (A) determines sex in Drosophila, with a ratio of 1:1 resulting in a female and a ratio of 1:2 resulting in a male.

Option 2 is the correct answer.

 

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Riya

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