ANT 100 Lecture Notes - Lecture 3: Human Genetic Variation, Microevolution, Allele Frequency

• School: Ryerson University
• Department: Anthropology
• Course: ANT 100
• Professor: Dana Osborne

Document Summary

Interconnection between species within a group and between different species. A change at the level of dna: this is random. (cid:862)(cid:373)ig(cid:396)atio(cid:374)(cid:863), o(cid:396) the p(cid:396)o(cid:272)ess of a(cid:374) i(cid:374)di(cid:448)idual (cid:272)a(cid:396)(cid:396)(cid:455) ge(cid:374)eti(cid:272) (cid:373)ate(cid:396)ial with them from one population to another. The process which some individuals may, often by chance, leave behind genetic material. U(cid:271)se(cid:395)ue(cid:374)t ge(cid:374)e(cid:396)atio(cid:374)s (cid:449)ill (cid:271)e (cid:271)ased o(cid:374) those (cid:862)lu(cid:272)k(cid:455)(cid:863) o(cid:374)es passi(cid:374)g o(cid:374) the ge(cid:374)eti(cid:272) (cid:373)ate(cid:396)ials. Natural selection: variation of traits, differential reproduction. Not everyone survives based on environmental conditions: heredity. Survives and reproduces babies that are similar: result. The more advantageous the trait, the more common this trait becomes within the larger population. Dark and light moths that were equally present in the endemic population in england. Industrial revolution hit, lots of soot and pollution. This changed the color of the light trees to darker shades over a short period of time.