Drosophila melanogaster have four pairs of chromosomes. a. what is the ploidy level at metaphase ii of meiosis? a. 8n b. 1n c. 4n d. 2n e. 0n b. what is the ploidy level at prophase of mitosis

The answer is d. 2n

Drosophila melanogaster have four pairs of chromosomes, so the normal cell would have 4n(four pairs) of chromosome. metaphase is the phase of cell division where the chromosome start to lining up in the middle. In meiosis II, the chromosome is already divided into half, so the total chromosome of the cell would be 2n(half of the 4n)

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a. to encourage apoptosis