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Chapter 23

Chapter 23 stuff for biology exam 1 part 9

QuestionAnswer
Species Organisms that can interbreed and produce fertile offspring
Gene pool Total set of genes and alleles in a population
Mutations Main source of variation in asexually reproducing populations (no genetic recombination)
Sexual reproduction Combines genetic material from two parents shuffling alleles and creating unique offspring
Fixed gene locus A location on a chromosome where all individuals have the same allele
Cline gradient of genetic variations along a geographical feature
Average heterozygosity proportion of individuals heterozygous for a gene, indicating genetic diversity
Conditions of Hardy-weinberg equilibrium No mutation, no gene flow, no natural selection, random mating, and large popuation size
Immigration Species moving into a new population, increase genetic diversity
Emmigration Species moving out of a population, reducing genetic diversity (potentially)
Gene flow Transfer of genetic material between population or species, increasing genetic diversity
Genetic drift Random fluctuations in allele frequencies stronger affect in small populations
Hardy-Weinberg equilibrium for different loci possible to be in equilibrium for one gene locus and not others
Population size in genetic drift large population experiences less genetic drift because there are more of them, preserving genetic variation. Small populations experience more genetic drift because there aren't as many of them
Created by: josie_d
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