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Sunday, September 18, 2011

3.1 Sexual and Asexual reproduction



3.1 Describe the differences between sexual and asexual reproduction.

Sexual Reproduction:
- Sexes exist (can identify male/female)
- Cells called gametes are produced (sperm cell and egg cell)
- Meiosis (type of cell division; halves the number of chromosomes in the gamete cell)
- Fertilisation (sperm cell and egg cell fuse together)
- Large Variation in the population. Sexual reproducing populations have a wide variety or variation (differences).

Asexual Reproduction:
- No sexes
- No gametes
- Mitosis (type of cell division; number of chromosomes is maintained constantly. So a cell with 20 chromosomes will divide to produce two cells each with 20 chromosomes. The two cells are identical)
- No Fertilisation
- Small Variation in the population. Asexual reproducing populations are identical ("clone") with the only variations as a result of mutation.

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