PS2025 Psychobiology (Genetics)

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1. behavioural traits and psychiatric illnesses are typically underpinned by ____ variants of small effect, and ___ variants of larger effect.

  • many / few
  • few / many
  • only / no
  • no / only
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2. SRY influences brain development/function...

  • indirectly via gonadal hormones
  • directly via gonadal hormones

3. which of these explanations for the Flynn effect is least likely?

  • more effective teaching
  • improved genetics
  • better nutrition
  • more access to IQ tests

4. which of these disorders is more common in males than females?

  • OCD
  • alcohol dependence
  • anorexia
  • Anxiety disorder

5. chemical modifications of histone proteins affects the accessibility of DNA - true or false?

  • true
  • false
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