biopsyc ch 4 & 5 history and themes (3) nature/nurture; epigenetics

what are concordance rates?

likelihood that two people will share a trait; calc via # of pairs (genetics) both exhibit and divided by total pairs assessed

What are twin and adoption study interpretations (nature v nurture)?

• concordance rate studies: the rate at which a behavior/trait happens b/w MZ (identical) and DZ (fraternal) twins

what are the steps of protein transcription?

• protein from gene loosens DNA

• exposure unzips enzyme and breaks down bonds (2 strips)

• RNA molecules carry code to nucleus (1 gene)

• END

what are the steps of protein translation?

• messenger RNA leaves nucleus

• around rough ER to ribosomes

• ribosomes translate base pairs (sets of 3)

• base pair codes for amino acid

• amino acid chain created

• END

where do proteins occur in neurons?

locus

what roles do proteins play in nervous system?

construct nervous system

what are primary, secondary, tertiary, and quaternary structures?

• primary: straight amino acid chain

• secondary: fold, pleated sheets (charges)

• tertiary: 3D booger (most stable structure formed)

• quaternary: booger latches and receptors change (ion channel)

what are the contributions of genetics to the development of depression?

• lower monoaminergic (pairings) tone

  • dopamine, norepinephrine, serotonin

• hyperactive stress hormones

  • cortisol lvls & trauma, etc.

• depression = less neurogenesis (brain activity)