Psychology 1000 Lecture Notes - Lecture 2: Heritability, Karyotype, Zygosity

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: All

Document Summary

Topics of the day: heritability, genetic base of intelligence, genetic disorders. You have dark hair which is a dominant trait. If we examined your karyotype, we would find that your alleles for hair colour were homozygous or heterozygous. Tuesday, october 11th, 2016: sir cyril burt, large scale study of twins reared apart, reports h2 approaching 1. 0, pointed out that he believed intelligence was highly hereditable. Iq tests to test intelligence and see if children should go to university or college/ trade school; only problem is he made up all data to support belief: bou(cid:272)hard"s t(cid:449)i(cid:374) tudies. Identical twins that thought they were identical. Identical twins that thought they were fraternal. Fraternal twins who thought they were fraternal. Fraternal twins who thought they were identical. I(cid:374)(cid:272)orre(cid:272)t (cid:271)elief of (cid:373)o(cid:374)ozygosity (cid:894)ide(cid:374)ti(cid:272)al(cid:895) (cid:862)leads to(cid:863) greater si(cid:373)ilarity. Genetic disorders: how many genes, early estimate; 100,000, genome project; 25. 000, 5-7 of these genes are defective.