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  • Created by: Hazel99
  • Created on: 21-09-16 13:32
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  • Gender
    • How is sex determined?
      • The ovum and sperm contribute a chromosomes to the zygote.
      • Ovum = X
      • Sperm = Y
      • The chromosomes contain DNA, which supplies each individual with unique genetic code.
      • 23 pairs of chromosomes
    • Role of androgens
      • Androgens (including testosterone) are the hormones that give men their 'male' characteristics.
      • stimulates the male reproductive system and suppresses the female reproductive sytem from forming
      • Development of penis and testes.
    • Klinefelter's syndrome
      • Results form XXY
      • Normal genitalia but small testes, which do not produce sperm.
      • They are infertile and often have low sex drive
    • Young (1964)
      • He studied rats because they reach sexual maturity quickly and male and females show distinctive behaviours.
      • female rats expoed to prenatal hormones became dominant and attempted to mount males from behind
      • Males adopted the female mating postion
        • Lordosis
    • Hines
      • They found that the CAH girls were more likely to give cross gender responses than their unaffected siblings
      • Studied 43 CAH girls and 38 CAH boys. compared to a control group (72 unaffected relatives)
      • Reductionist
      • High ecological validity
      • Congenital adrenal hyperplasia
    • Swaab and Fliers
    • Strength
      • Replicated-Improving the realiability of findings.
      • Deterministic
      • scientific- variables can be measured


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