Tuesday, 16 August 2011

3.1 sexual and asexual reproduction



  • Organisms that show sexual reproduction show sexes (male/female). No sexes exist in Asexual reproduction.
  • Sexual reproduction has Gameke cells in the sperm and egg cells. Asexual does not have Gameke cells.
  • Meiosis is a cell division that produces Gamekes. One of Meiosis' effects is to half the number of chromosomes in the Gameke cell. 
  •  Total number of chromosomes in a human is 46 per cell. In Gamekes the total number is 23 per Gameke cell. From 46 to 23 is the process of Meiosis.
  • In Asexual reproduction there is Mitosis and Binary fission bacterial cells. Number of chromosomes is maintained constantly.
  • In Sexual reproduction there is the process of fertilisation, where the sperm cell and egg cell fuse together. In Asexual reproduction there is no fertilisation and no fusion of cells.
  • Many differences in the individuals of a sexual reproducing population. Where as Asexual show a small amount of variation, mainly identical (clone).  
credit to samir

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