PSYC200 Lecture Notes - Lecture 2: Miscarriage, Y Chromosome, Meiosis
Document Summary
Species heredity genetic endowment members of a species have in common. Individual heredity how genes contribute to differences. 1 cell divides to produce 2 cells, each with only 23 chromosomes. Cell divides to produce two identical cells with 46 chromosomes each. Genotype the genes that an individual inherits. Phenotype- the (cid:449)a(cid:455) a pe(cid:396)so(cid:374)(cid:859)s ge(cid:374)es a(cid:396)e e(cid:454)p(cid:396)essed i(cid:374) observable or measurable characteristics, resulting from the interaction of genes & environment. Summary of family and twin studies of the genetics of. O(cid:374)l(cid:455) if the ge(cid:374)e is (cid:858)tu(cid:396)(cid:374)ed o(cid:374)(cid:859) is it influential. Heritability: (cid:862)the p(cid:396)opo(cid:396)tio(cid:374) of all (cid:448)a(cid:396)ia(cid:271)ilit(cid:455) i(cid:374) the t(cid:396)ait (cid:449)ithi(cid:374) a la(cid:396)ge sa(cid:373)ple of people that (cid:272)a(cid:374) (cid:271)e li(cid:374)ked to ge(cid:374)eti(cid:272) diffe(cid:396)e(cid:374)(cid:272)es a(cid:373)o(cid:374)g those i(cid:374)di(cid:448)iduals(cid:863) (cid:894)p. 82(cid:895) Males are more genetically vulnerable than females because the y chromosome lacks many of the gene locations of the x. Multiple genes interacting with the environment (eg skin colour, height, weight, intelligence, personality, susceptibility to cancer and depression)
