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Sex Determination

Revision as of 09:48, 13 November 2019 by Ellen References (talk | contribs)

Contents

Key Stage 4

Meaning

Sex determination is how the sex of a individual is decided by the chromosomes.

About Sex Determination

In humans; females have two X Chromosomes while males have an X Chromosome and a Y Chromosome.
The probability of a male or a female being conceived is 50%.
This punnett square shows the chances of having male or female offspring.

References

AQA

Sex determination, page 211, GCSE Biology; Third Edition, Oxford University Press, AQA
Sex determination, pages 192-3, GCSE Biology, Hodder, AQA
Sex determination, pages 40-1, GCSE Combined Science Trilogy 2, Hodder, AQA