PSYC 100 Lecture Notes - Lecture 3: Quantitative Trait Locus, Twin Study, Chromosome

• School: Queen's University
• Department: Psychology
• Course: PSYC 100
• Professor: Jordan Poppenk

Document Summary

Discuss whether it is possible to separate the influences of nature and nurture on development. It is very difficult to separate genetic influence from environmental influences. Nature: from the genes: nativism: certain abilities are hard wired or innate, we are born with them and not learned through experience. Nurture: from the environment: empiricism: we are born are black slates and all behaviour is a result from individual experiences with the environment. (john locke"s tabula rasa) Genes affect the environment, and the environment affects our gene expression, nature and nurture interact at every level. So, almost all behaviours are a result from both nature and nurture- not one or the other. Even genes can be changed by the environment so it is almost impossible to separate these two. Chromosomes: threadlike structures which contain genes: there are 23 pairs of chromosomes. 22 are autosomes, and 1 pair are made up of x and y sex chromosomes (female xx male xy)