3.1: Describe the differences between sexual and asexual reproduction
Sexual reproduction | Asexual reproduction |
In sexual reproduction there are sexes, male or female. | In asexual reproduction there are no sexes. |
Sexual reproduction uses cells called gametes – sperm (male) - Egg (female) | In asexual reproduction there are no gametes. |
In sexual reproduction cell division called meiosis – ½ the number of chromosomes in a gamete cell . In human adult total number of chromosomes is 46 per cell but in the gamete cell the total number of chromosomes is 23 per cell. | In asexual reproduction there is no meiosis, only mitosis in eukaryote cells. In binary fission in prokaryote bacterial cells the number of chromosomes is maintained constantly. So if there were 20 chromosomes in the process of mitosis it would create to cells each having 20 chromosomes each and being identical. |
In sexual reproduction there is fertilisation in which the male and the female gametes fuse together | In asexual reproduction there are: no gametes à no cell fusion à no fertilisation |
In the population of sexual reproduction there is a broad variation – there are differences | In the population of asexual reproduction there is only a small variation which is due to mutation, the majority are identical (clones) |
What are eukaryote and prokaryote cells?
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