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Monday, December 1, 2014

Meiosis

What's Happening?

Meiosis 1:
  • Prophase 1- After the DNA duplicates, the chromosomes pair up with its corresponding homologous chromosome. Then the process of crossing over takes place.
  • Metaphase 1- The chromosomes line up in the middle of the cell, and spindle fibers attach themselves to the chromosomes.
  • Anaphase 1- The spindle fibers pull the homologous chromosomes to opposite ends of the cell.
  • Telophase 1- The parent cell separates into two haploid daughter cells.
Meiosis 2:
  • Prophase 2- Each of the daughter cells have half the number of chromosomes as the original cell. The difference between prophase 1 and prophase 2 is that the DNA is not replicated before.
  • Metaphase 2- The chromosomes line up in the middle of the cell.
  • Anaphase 2- The sister chromatids separate and move to opposite ends of the cell.
  • Telophase 2- Meiosis 2 results in 4 haploid daughter cells.

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