hard · MCAT bio-biochem
Which of the following events occurs during Meiosis I but is absent from Mitosis, and what is its genetic significance?
- Synapsis and crossing over occur in Prophase I, increasing the genetic diversity of the gametes.
- Sister chromatids separate during Anaphase I, ensuring that each daughter cell receives a diploid set of chromosomes.
- Homologous chromosomes align independently at the metaphase plate in Mitosis to allow for genetic recombination.
- DNA replication occurs during the S-phase immediately preceding Meiosis II to maintain the chromosome count.
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