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Which of the following is a difference between phase I and phase II of meiosis? (1 point)
Phase I results in two haploid daughter cells and phase II results in four haploid daughter cells.
Genetic variations can only occur during phase II of meiosis.
Anaphase, metaphase, and telophase only occurs during phase I of meiosis.
O Phase I results in daughter cells with 23 chromosomes each and phase II with 46 chromosomes each.
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Correct answer: "Phase I results in two haploid daughter cells and phase II results in four haploid daughter cells."
Why: Meiosis I is the reductional division — homologous chromosomes separate, producing two haploid cells. Meiosis II is the equational division — sister chromatids separate, producing (from those two cells) a total of four haploid daughter cells. The other choices are false: genetic variation arises mainly in prophase I (crossing over) and by independent assortment in metaphase I, the stages (metaphase/anaphase/telophase) occur in both I and II, and chromosome numbers are not 46 after meiosis II.
Why: Meiosis I is the reductional division — homologous chromosomes separate, producing two haploid cells. Meiosis II is the equational division — sister chromatids separate, producing (from those two cells) a total of four haploid daughter cells. The other choices are false: genetic variation arises mainly in prophase I (crossing over) and by independent assortment in metaphase I, the stages (metaphase/anaphase/telophase) occur in both I and II, and chromosome numbers are not 46 after meiosis II.
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