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Multiple Choice

Meiosis I is...

Meiosis I is the division where homologous chromosomes are separated into two cells, giving two haploid daughter cells. Each chromosome still consists of two sister chromatids, which will separate later in meiosis II. This step reduces the chromosome number from diploid to haploid, while still carrying replicated chromosomes. Crossing over between homologous chromosomes happens during prophase I, contributing genetic diversity. So this description is correct because it captures the key event of meiosis I—homologs separating to produce haploid cells—with sister chromatids awaiting separation in the next division. The other statements describe processes that either happen in meiosis II (sister chromatids separating) or involve chromosome number changes or mitotic processes, which do not apply to meiosis I.

Meiosis I is the division where homologous chromosomes are separated into two cells, giving two haploid daughter cells. Each chromosome still consists of two sister chromatids, which will separate later in meiosis II. This step reduces the chromosome number from diploid to haploid, while still carrying replicated chromosomes. Crossing over between homologous chromosomes happens during prophase I, contributing genetic diversity.

So this description is correct because it captures the key event of meiosis I—homologs separating to produce haploid cells—with sister chromatids awaiting separation in the next division. The other statements describe processes that either happen in meiosis II (sister chromatids separating) or involve chromosome number changes or mitotic processes, which do not apply to meiosis I.