IB Biology SL D3.2.11 Sex determination
IB Biology SL D3.2.11 Sex determination
Practise explaining human sex determination through chromosomes, Y-linked gene activity, embryonic testes and testosterone effects.
How this is tested
- explain how a Y chromosome can lead to testes developing in an embryo
- link embryonic testes to testosterone and development of male genitalia
- calculate the probability of a male or female child in independent births