evolutionary psychology
- Created by: lw121x
- Created on: 11-12-15 14:20
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- evolutionary psychology
- proximate causes; genes = blue eyes. other people ke friends influene too
- influences within an individuals lifetime that leads to particular traits/ behaviours
- Ultimate causes; over many years of EV traits that you have, why did they win natural selection?
- EV constantly affects our physical features ie. hands and bones
- shaped based on reproductive survival.
- approach to all psychology
- Where do traits come from?
- physical or social/
- genetics made same genetic material
- 23 pairs, each has long strand dna
- human skin contains nucleas each nucleas contains 46 chromosomes
- = instructions for how to build yjr body
- dna = deoxyribonucleic acid
- DNA coiled up from chromosomes
- double helix shaped molecule. the rings of doyble helix shape
- complimentary chains adebibe thymine and gunanime
- DNA made up of A-T or G-C pairs
- dna long combo of thesepairs, when unravelled contains instructions for making proteins
- DNA made up of A-T or G-C pairs
- complimentary chains adebibe thymine and gunanime
- DNA is a basis for translation into protein first into RNA then protin. Protein then perform functions in cell ie. Rhodospin
- how is genes different from DNA
- ganes subpart of dna molecule, codes for protein
- one little part of dna = instructions
- some parts of it won't be incorporated in protein butseinfo
- 1 chro= many gemes
- genes expressed in certain conditions....
- translation not always automatic
- other processes important ie. exposure exee = muscle
- genotype = genetic package to individual, actual genes
- phenotyoe = behavioural psy diff the way that genes are expressed
- passing on genes are genetic variation
- sex = two sets of chromosomes mixing; each parent 2 copes chromosome one from each parent randomly selected
- 2 copes of genealleles one allele on chromsomene for dad but which one determines it?
- Alleles dominant vs recessiove, dominant always express effect. Recessianother matching
- behaviotr and genes
- are incomplete dominance ie. half dimples
- most behiours and traits combination of many genes andmany diff alleles
- polygenic- risk for depression not one gene but many that predispose you
- massive variation
- how human life came to be
- natural selection; allow species to be alive
- graduan nature selects the most fit to surive
- fiitest not fastest could mean most smart
- VARIATION- need vary to slect from if all was the same n
- succesfful genes accumulate ove
- sexual selection; how these adaptations are passed via 'survival of the fittest;
- - we select those we want to reproduce with. PEACOCKS heaompromise survival ? signal good genes
- intrasex= same sex compete
- sexual selection opposire chose
- EEA . cars TV faster than evolution
- natural selection; allow species to be alive
- Mate preferences
- clark hatfield would you like sex men most of the time
- Batesman principle - different costs repruction in sexes so more picky
- TRivers differences investmen females = maternal males = biological
- your mate choice is very important a disloyal fem omeone elses kid
- Sexual orientation
- Homosexuality - benefit wider array people as milar genes ie. bro sis ie. bees never produce themselves
- gay
- balanced morphism - something may have good genetic trait ie. protect malaria but predispose sickle cell anemia OVERALL GOOD but thoses that get bad side gene = gay pop at large benefit
- proximate causes; genes = blue eyes. other people ke friends influene too
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