ANTH 101 Lecture Notes - Lecture 3: Neo-Darwinism, Phenotypic Trait, Genotype
Document Summary
Anthropology 101 chapter 3 over a few generations. Microevolution - researchers focus on short term evolutionary changes in a species. Macroevolution - researchers examine long-term evolutionary changes, sometimes over. Developed in 1930-40s to combine darwin"s concept of natural selection. Mendel"s ideas about heredity helped undermine the 19th century anthropological millions of years, including the origin of new species. concept of biological race. Uses neo-darwinism to examine human biological variation. Recognizes that all human beings are a single race. Neo-darwinism defined species in population of organisms. Can not reproduce fertile offspring if interbred with other species. Often occupy a species niche in nature. Gene pool consists of all the genes in all members of a species. Gene frequency refers to how often variants of a specific gene occur within a population. Population geneticists distribution of one trait. the same range of genotypic variation. Clines- display gradually shifting geographic variations in a single phenotypic trait- map.
