Psychology 1000 Lecture Notes - Lecture 10: Tay–Sachs Disease, Phenylalanine, Tyrosine

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Dr.Mike

Document Summary

Dominant produces effect in either homozygous or heterozygous mode. Recessive only produces effect in heterozygous mode. Polygenetic effects traits related to action of more than 1 gene or chromosome (h2 = s2g /s2g. + s2e: estimate of how much observed variability due to genetic factos alone, h2. = 1. 0 (due to genes: does not indicate extent to which genes responsible for expression of trait, taps relative contribution of genes to overall variation in population, applies to groups, not individuals. If everyone is the same, h2 approaches 0. Notion seems reasonable: family relationship studies. 1st cousin 12. 5% identical: bouchard remarkable similarity in family relationship study. Consider jim lewis and jim spring: galton: hereditery genius. Sons of highly successful men were too highly successful. However, highly successful men did not have highly successful adopted sons. Believes that intelligence was unitary (mental quickness: he thought that mental and physical quickness was the same, unitary means one thing, can be measured easily and solely.