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1. Mitotic prophase differs from prophase I of meiosis in that sister chromatids

ID: 278445 • Letter: 1

Question

1. Mitotic prophase differs from prophase I of meiosis in that sister chromatids separate in mitotic prophase, but not in prophase I of meiosis. synapsis occurs only in mitotic prophase the nuclear envelope disappears in prophase I of meiosis but not of mitotic prophase. crossing over is characteristic of prophase I of meiosis but not of mitotic prophase. chromatin becomes condensed only in mitotic prophase. 2. If the haploid chromosome number is 29, then triploids would have chromosomes 30. 58. 59. 87.

Explanation / Answer

Ans 1 : crossing over is characteristic of Prophase I of meiosis but not of mitotic prophase.

The crossing over , synapsis and recombination occurs in meiosis prophase I but not in mitotic prophase. Moreover the mitotic prophase is a short phase , whereas meiotic prophase I is a longer phase.