Psychology 1000 Chapter Notes - Chapter 4: Twin, Tay–Sachs Disease, Leonard Berkowitz

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Michael Atkinson

Document Summary

Chromosomes can be seen through karyotypes (genetic blueprint) 23 pairs of chromosome (22 autosomes, 1 sex) Dna is the template for rna , which creates polymers of amino acids (proteins) The influence of genes on behavior is through protein synthesis. Intelligence could increase due to an increase of proteins (myelin, receptors etc) in the nerve pathway. Genes give possibility, but not degree of expression. Genes only work when exposed to the particular environment at a certain time. Cant look at outward characteristics and guess genotype. Dominance can alter due to individual or sex. Traits related to the action of more than 1 gene or chromosome. Everyone has same hair colour (h^2=0) h^2 increases as genetic diversity increases h^2 decreases as environmental diversity increases. Find out through comparison of identical twins, and how their data differs from fraternal/ siblings. Through reaction time, because intelligent was unitary (mental quickness)