Anthropology 1026F/G Lecture Notes - Lecture 3: Ethnocentrism, Bog Body, Ground-Penetrating Radar
1 Mar 2017
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Anthro 1026: lecture 3 continued on darwinian evolution. Had idea how it worked but underlying mechanisms not known. Darwin"s time = children "blends of parents so how could useful traits b passed on = would be watered down . Mechanisms major research focus since darwin"s time = only enhanced ideas. Combination of knowledge of mechanisms (genetics) and darwin"s model = modern. Main units of heredity in cells = chromosomes (coloured bodies) Humans = 46 or 23 pairs (one mother; one father) Chromosomes made up of genes at different loci: control physical/biological traits. Genes made up of dna = building blocks of life - monogenic. Gene control of traits highly complex; some cases many genes in combination in uence trait - polygenic. Total set of genes in chromosomes of bearer = genotype. Hierarchical structure: genotype (total set of genes) - chromosomes - genes at various loci (locations) - dna (molecule containing genetic code) and associated proteins.
