Scelta multipla
In which of the following steps of prophase I does crossing over occur?
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17. Meiosis and Sexual Reproduction
Meiosis
Scelta multipla
Meiosis II is similar to mitosis in that it results in which of the following cellular events?
A
Separation of homologous chromosomes during anaphase
B
Reduction of chromosome number from diploid to haploid
C
Synapsis and crossing over between homologous chromosomes
D
Separation of sister chromatids during anaphase
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Understand the key stages of meiosis and mitosis, focusing on what happens during anaphase in each process.
Recall that in meiosis I, homologous chromosomes separate, which reduces the chromosome number from diploid to haploid.
Recognize that meiosis II resembles mitosis because it involves the separation of sister chromatids during anaphase, not homologous chromosomes.
Note that synapsis and crossing over occur only during prophase I of meiosis, not during meiosis II or mitosis.
Conclude that the cellular event common to both meiosis II and mitosis during anaphase is the separation of sister chromatids.
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