If 2n = 10, how many homologous chromosomes are in each cell at the beginning of prophase ii of meiosis?

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Chen

Biology

6 April, 12:38

If 2n = 10, how many homologous chromosomes are in each cell at the beginning of prophase ii of meiosis?

+5

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Alexander Simon · Answer 1

The answer is 5. Meiosis I reduces the ploidy of a cell by half. Therefore, if a cell was diploid (2n), then at the end of meiosis I, the two formed daughter cells will have haploid (n) number of chromosomes. Meiosis II is similar to mitosis and does not reduce ploidy.

(2n) / 2 = 10/2; n = 5