Meiosis

HideShow resource information
View mindmap
  • Meiosis
    • Sexual Reproduction
    • Produces 4 daughter cells
    • Produces cells containing half the number of chromosomes
    • Produces genetically different cells
    • Meiosis 1
      • Homologous chromosomes pair up and chromatids wrap around each other
        • By the end of the stage, the homologous pairs have separated, with one chromosome from each pair going into one of the 2 daughter cells
    • Meiosis 2
      • Chromatids move apart
      • 4 cells have been formed
        • In Humans each of these contain 23 chromosomes
    • Independent Segregation
      • In Meiosis 1, chromosomes line up alongside its homologous partner and it does this RANDOMLY
      • The combination of chromosomes that go into the daughter cell is random
    • Genetic recombination by Crossing Over
      • Chromatids twist around one another creating tensions and portions of chromatids may break off
        • Broken portions rejoin  chromatids of its homologous partner
      • New  genetic combination produced

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Cellular processes and structure resources »