Meiosis

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  • Created by: Catr08
  • Created on: 16-03-21 10:23

Meiosis:

  • production of gametes: sex cells (have half as many chromosomes as other cells)
  • separates sister chromatids + homologous chromosomes
  • homologous pairs are separated during meiosis I
  • sister chromatids are separated during meiosis II

Before meiosis I, the cell goes through interphase: grows during G1, copies chromosomes during S phase, prepares for division during G2.

Meiosis 1:

Reduction division (diploid to haploid) in which homologous chromosomes are separated.

Prophase 1:

  • chromosomes condense/supercoil and pair up with their homologous partner
  • homologous partners exchange part of their DNA thanks to the process of crossing over 

Metaphase 1:

  • homologous chromosomes line

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