ANTHROP 2200 Lecture Notes - Lecture 4: Tay–Sachs Disease, Genetic Drift, Genetic Divergence

• School: Ohio State University
• Department: Anthropology
• Course: ANTHROP 2200
• Professor: Timothy Sefczeck

Document Summary

Lecture 4 - evolutionary forces and human adaptability. Now we know what genes are and how they are inherited. Next we talk about how genetic inheritance helps evolution to occur. States that a population"s genotype frequencies will not change, but remain constant; two types of populations. Total population: all the individuals in a group. Breeding population: all the individuals capable of producing offspring b. Measures the total population gene frequency, but is influenced by the breeding population"s frequency; Bp determines which genes are passed on and which are not. Gene pool - all the genes available from a breeding population c. Predicts a population will remain constant, evolution will not occur. Random mating means reproducing with anyone, no selectivity, no concern for certain traits; keeps trait variation high. Non-random mating means consciously or subconsciously selection for certain characteristics, which decreases variation due to less desirable traits not being carried.