ANTHROP 2200 Study Guide - Midterm Guide: Phenotypic Trait, Reproductive Isolation, Genetic Drift
14 Aug 2016
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Domain, kingdom, phylum, class, order, family, genus, species. Genus is always capitalized, species is never capitalize, both genus and species italicized, if handwritten underlined. In meiosis there are two divisions, not identical to parent, used for reproduction (gametes), crossing over occurs. Co-dominance-there is more than one dominant gene so heterozygotes individual expresses both phenotypes- blood types incomplete dominance-one allele does not completely cover/dominate over another resulting in a combined phenotype-blending flowers. Polygenic inheritance-traits determined by genes at two or more loci, resulting in nearly unlimited phenotypic possibilities continouos variation-skin color hair color. Pleiotropy-a single gene influences more than one phenotypic trait epi-genetics-changes in gene expression are phenotype without changes in underlying dna structure. Directional selection-favors one extreme form of a trait stabilizing selection-favors average form of the trait disruptive selection-favors both extreme forms of a trait. Discovered the double helix structure of dna- stole from rosalind franklin.
