ANTH 1102 Lecture Notes - Lecture 2: Dryopithecus, Acheulean, Homo Habilis
23 Feb 2017
School
Department
Course
Professor
Document Summary
Microevolution: change in gene(allele) frequency in a population over time. Amboseli national park,kenya: rare to not have tusks. Mikumi national park, tanzania: rare to have tusks. Darwins 3 postulates: variation exists, variation is heritable, there is a struggle for existence. Didn"t know: ho(cid:449) t(cid:396)aits a(cid:396)e i(cid:374)he(cid:396)ited, (cid:449)he(cid:396)e (cid:374)e(cid:449) (cid:448)a(cid:396)iatio(cid:374) (cid:272)a(cid:373)e f(cid:396)o(cid:373) Green peas yellow peas yellow peas yellow peas: microevolution is a change in gene (allele) frequencies in a population over time. To understand microevolution one must think in terms of populations rather than individuals. As far as scientists can tell, there are only four ways that allele frequencies can change in a population over time: microevolution can occur in a single generation and is relatively easy to observe. The showoff hypothesis: reason why men hunt and share meat. Intersexual: have aspects or characteristic that impresses other sex. Intra-sexual selection: compete with other males and females. Affects hemoglobin gene which is blood protein and transports oxygen.
