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12 Cards in this Set

  • Front
  • Back
Population
The smallest unit of evolution
Microevolution
A change in allele frequencies in a population over generations
Genetice Variation
differences among individuals in the composition of their genes or other DNA segments
Discrete Characters
can be classified on an either-or basis
Average Heterozygosity
The average percentage of loci that are heterozygous
Geographic Variation
differences in the genetic composition of separate populations
Cline
a graded change in a character along a geographic axis
Conditions of Hardy-Weinberg Equilibrium
No mutations, random mating, no natural selection, extremely large population size, no gene flow
Hardy-Weinberg Equation
p2 + 2pq +q2 = 1
Population
A group of individuals of the same species that live in the same area and interbreed, producing fertile offspring
Gene pool
Consists of all copies of every type of allele at every locus in all members of the population
Genetic Drift
Chance events can also cause allele frequencies to fluctuate unpredictably from one generation to the next especially in small populations