Video
Meiosis I Separates Homologues
During Meiosis I, the number of chromosomes is reduced to half (from diploid to haploid).
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Video
Meiosis II Separates Sister Chromatids
Meiosis II appears very similar to mitosis of a haploid cell. The key difference is that because of crossing over during Prophase I, the chromatids differ genetically. The chromatids are separated during anaphase II.
References