Which of the following does not occur during prophase I? Crossing over b. homologous chromosomes line up as tetrads Spindle forms d. nuclear envelope breaks down All of the above do occur during prophase I
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Crossing over: Homologous chromosomes exchange genetic material, which increases genetic diversity. b. Homologous chromosomes line up as tetrads: Homologous chromosomes pair up and form tetrads, which consist of four chromatids. Show more…
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The nuclear envelope forms around each group of chromosomes and the spindle apparatus disappears in: A. prophase. B. anaphase. C. metaphase. D. telophase.
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