PSYC 317 Lecture Notes - Lecture 5: Bamhi, Submersed, Taq Polymerase

• School: McGill University
• Department: Psychology
• Course: PSYC 317
• Professor: Jeffrey Mogil

Document Summary

Shared environmental factors tend to make people more correlated in what it is that is being measured. Non-shared environmental factors include: things that make the individual less correlated with each other. Birth order: there can only be one oldest child, oldest children tend to have certain personalities on average which are different from the personalities of the youngest child. Idios(cid:455)(cid:374)(cid:272)(cid:396)ati(cid:272) e(cid:454)pe(cid:396)ie(cid:374)(cid:272)e: a(cid:374)(cid:455) i(cid:374)di(cid:448)idual e(cid:448)e(cid:374)ts that (cid:272)a(cid:374)"t (cid:271)e p(cid:396)edi(cid:272)ted that happe(cid:374)s. Ni(cid:272)he filli(cid:374)g (cid:894)(cid:862)fa(cid:373)il(cid:455) e(cid:272)olog(cid:455)(cid:863)(cid:895): (cid:271)ee(cid:374) sho(cid:449)(cid:374) (cid:455)ou(cid:374)ge(cid:396) (cid:272)hild(cid:396)e(cid:374) (cid:449)ill o(cid:272)(cid:272)up(cid:455) (cid:449)hate(cid:448)e(cid:396) niche is being left over by older siblings. E. g. if older child is good kid, younger child may end up being the rebel. Gold standard of estimating heritability is twin studies. Relies on comparison between the two type of twins that exist: monozygotic (identical) and dizygotic (fraternal). Due to cleavage of the embryo at 8- or 16- cell stage (one sperm and one egg that splits into two embryos) Due to polyovulation (two eggs fertilized by two sperms)