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Question

During which meiotic stage, a haploid set of chromosomes each with two sister chromatids is present for a sperm cell precursor?

A
Anaphase I
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B
Metaphase I
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C
Prophase II
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D
Anaphase II
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E
Telophase II
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Solution

The correct option is D Prophase II
Since the haploid set of the chromosome is present, meiosis I have already been completed and the cell is in some stage of meiosis II.
Prophase II is characterized by condensation of chromatin thread and appearance of each chromosome as having two sister chromatid.
Anaphase II is marked by separation of sister chromatids and their movement towards opposite poles.
Telophase II is marked by the presence of sister chromatids (now called as chromosomes) at opposite poles.
Therefore, the correct answer is option C.

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