Scelta multipla
In typical animal meiosis beginning with one diploid germ cell, how many daughter cells are produced at the end of meiosis II (before any post-meiotic differentiation)?
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9. Mitosis and Meiosis
Meiosis
Scelta multipla
In meiosis II, what is the most important outcome that contributes to the formation of gametes?
A
Reduction of chromosome number from diploid to haploid by separating homologous chromosomes
B
Crossing over between homologous chromosomes to create recombinant chromatids
C
Pairing (synapsis) of homologous chromosomes to form tetrads
D
Separation of sister chromatids to produce haploid cells with single chromatids per chromosome
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Recall the stages of meiosis: meiosis I and meiosis II, and understand their distinct roles in gamete formation.
Identify that meiosis I is responsible for the reduction of chromosome number from diploid to haploid by separating homologous chromosomes.
Recognize that crossing over and pairing (synapsis) of homologous chromosomes occur during prophase I of meiosis I, not meiosis II.
Focus on meiosis II, which resembles mitosis, where sister chromatids are separated.
Conclude that the key outcome of meiosis II is the separation of sister chromatids, resulting in haploid cells with single chromatids per chromosome, which are the gametes.
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