PSYC 100 Lecture Notes - Lecture 3: Inclusive Fitness, Emo, Opportunity Cost

• School: Queen's University
• Department: Psychology
• Course: PSYC 100
• Professor: Jill L Atkinson

Document Summary

Ultimate causes are explanations at the evolutionary level. Proximate factors are the immediate causes and mechanisms of the behavior. Objectives: explain the differences between nature and nurture, describe the heritability of certain traits, including whether they are polygenic, describe the field of epigenetics. Nature = nativism born with the knowledge present, from the genes. Nurture = empiricism obtain all knowledge through observable facts and experiences, from the environment. Behaviour results from nature and nurture work in concert. Behaviour genetics the study of genetic that influences behaviour. 22 chromosomes are known as autosomes and the 23rd pair is made up of x and y sex chromosomes. Genes are defined regions of chromosomes that encode for proteins, chromatids are one half a chromosome where the gene is located is called a locus. Identical twins = monozygotic (mz) twins, from one egg, one zygote. Concordance the expression/degree of similarity in traits (or absence) by both twins.