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Biology 18 Online
OpenStudy (anonymous):

Crossing-over rarely occurs in mitosis, unlike meiosis. Which of the following is the likely reason? a. Chromatids are not involved in mitosis. b. Homologous chromosomes rarely line up to form tetrads during mitosis. c. A cell undergoing mitosis does not have homologous chromosomes. d. There is no prophase during mitosis.

OpenStudy (anonymous):

???

OpenStudy (anonymous):

B

OpenStudy (anonymous):

It has to be "B". Because homologous chromosomes do not line up as tetrads during mitosis. It is a feature of meiosis.

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