Saturday, 23 February 2013

3.2 understand that fertilisation involves the fusion of a male and female gamete to produce a zygote that undergoes cell division and develops into an embryo

Gametes are sex cells: the male one being sperm; the female one being an egg.
When they join together it is know as fertilisation. At this point the fused gametes become a zygote.
A the zygot then divides repeatedly, at this stage it becomes an embryo.

4 comments:

  1. http://igcse-biology-2017.blogspot.hk

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  2. more at

    http://igcse-biology-notes.blogspot.hk/2017/06/32-understand-that-fertilisation.html

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