ANTH 1102 Chapter Notes - Chapter 5: Speciation, Sexual Selection, Mitosis
4 Sep 2016
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Natural selection: selection of favored forms through differential reproductive success. Evolution: transformation of species; descent with modification. Uniformitarianism: belief that natural forces at work today also explain past events. Population genetics: field that studies genetics of breeding populations. Dominant: term describing an allele that masks another allele in a heterozygote. Recessive: term describing a genetic trait masked by a dominant trait. Chromosomes: paired lengths of dna, composed of multiple genes. Gene: place (locus) on a chromosome that determines a particular trait. Allele: a variant of a particular gene. Heterozygous: having identical alleles of a given gene. Independent assortment: chromosomes inherited independently of one another. Meiosis: process by which sex cells are produced. Crossing over: homologous chromosomes intertwine and exchange dna. Gene pool: all the genetic material in a breeding population. Genetic evolution: change in gene (allele) frequency in a breeding population. Sexual selection: selection of traits that enhance mating success.
