PSYC 1100 Chapter Notes - Chapter 3: Vocal Folds, Physical Exercise, Phenotype

• School: Douglas College
• Department: Psychology
• Course: PSYC 1100
• Professor: Roger Tweed

Document Summary

How genes affect behaviour: genes never produce or control behaviour directly. Distinction between genotype and phenotype: genotype : refers to the set of genes that the individual inherits, phenotype: refers to the observable properties of the body and behavioural traits. In an environment that is constantly changing, genes have a better chance of surviving if they are rearranged in each generation. Identical twins: formed when two bundles of cells separate from each other during the early mitotic divisions following the formation of a zygote. Identical twins are monozygotic because they emerged from one zygote: fraternal twins: originate from two zygotes (dizygotic) each formed from different egg and sperm cells. Evolution has no foresight: naturalistic fallacy: nature is neither good nor bad, moral nor immoral, to say that natural selection led to a given characteristic does not lend any moral virtue to that characteristic, ex.