Clarifications

The difference between meiosis I and meiosis II:

Meiosis I:

  • Replication of DNA
  • "Swap Bits"
  • Allows for genetic diversity

Mitosis vs. Meiosis I:

  • "Crossing over" does *NOT* happen in mitosis.

Meiosis II:

  • Creates gametes w/ *EXACTLY* 1/2 the DNA of normal cells

Mitosis vs. Meiosis II:

  • DNA does not replicate before meiosis II
  • In meiosis II the sister chromatids may not be identical because of crossing over.
  • # of chromosomes at the equatorial plate in meiosis II is 1/2 # of those in mitosis
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