Psychology 1000 Chapter Notes - Chapter 4: Twin, Allosome, Heritability

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

Document Summary

Genetics: nature so(cid:373)ethi(cid:374)g (cid:455)ou"re (cid:271)or(cid:374) (cid:449)ith, nurture something we learned, been established that we are affected by both, genes. Linked on chromosomes: karyotype genetic blueprint, 23 pairs of chromosomes, 22 autosomes. Fraternal twins are 50: parent, siblings are 50, grandparent, uncles and aunts 25, 1st cousin 12. 5, heritability, genetic base of intelligence, genetic disorders. Heritability: no veritability no heritability (heritability will be 0, does not indicate extent to which genes are responsible for expression of trait, taps relative contribution of genes to overall variation in population, applies to groups, not individuals. For any group observed there must be a genetic contribution: consider, calculation of different groups of rectangles: a= l x w. Family relationship studies: identical twins: 100, fraternal twins: 50, parent, sibling: 50, grandparent, uncle and aunt: 25, 1st cousin: 12. 5, bouchard. Looks for identical twins separated at birth to do test to see how similar they are: ex: jim lewis and jim springer, reunited at 39.