Psychology 1000 Study Guide - Midterm Guide: Robert Trivers, Parental Investment, Polygynandry

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Laura Fazakas

Document Summary

Can"t infer this from phenotype, outward characteristics may not indicate underlying genetic contribution. Chromosome tightly coiled molecule of dna, carried genes o. Every cell has 46 chromosomes, except sex cells which have 23. Genes/karyotype hereditary blueprints, which act by influencing protein synthesis in the body o. Enviro can influence protein synthesis as well: genes determine range of possibilities, but not degree of expression. Alleles alternate forms of a gene that produce different characteristics: homozygous alleles have predictable phenotypic outcome, heterozygous alleles have different possible outcomes, dominant alleles produce their effect in either homozygous or heterozygous mode, recessive alleles produce their effect only in homozygous mode. Recombinant dna procedures--. combine dna from 2 organisms &put them back into 1. Gene knockout alter a specific gene so it stops doing anything. Heritability coefficient (h2) number between 0 and 1 indicating how much you can attribute a trait in a population to genetics, rather than enviro o.