Biological Approach

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  • Created by: Hannah
  • Created on: 27-05-10 11:57


  • Genes determain gender by chromosomes ** (girl) XY (boy)
  • Male carries X or Y and the female carries X so it is the male which detrmaines the baby's gender
  • Combination of genes is called a Genotype and the physical expression of these genes is the Phenotype
  • Sex chromosomes lead to the production of glands which produce sex hormones which causes the foetus to develop into a male or female.


  • Gonads (sex organs) develop which produce gametes and hormones
  • At about 6-8 weeks, the foetus will either


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