Meiosis 1

Meiosis is the production of gametes (sperm and egg cells)

• it's a form of nuclear division that produces haploid gametes
• gametes are haploid as they have 23 chromosomes (half the number in a normal human body cell)
• during fertilisation gametes must be haploid as when they 'fuse it restores the diploid number' which will 'sustain a consistent number of chromosomes for future generations' and thus 'prevent genetic abnormalities'
•  There are 2 parts to meiosis: Meiosis I and Meiosis II

1) Interphase occurs (the same as in mitosis)

2) Prophase I:

 
  - the 'nuclear membrane breaks down' and 'centrioles move to opposite poles' and    …