Set: patterns of evolution

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All 9 Terms

Term Definition
genetic drift a change in allele frequencies of a population due to a chance process
speciation the formation of a new species from a single ansestoral species
allopatric speciation occurs when a popuation is seperated by a geographical barrier
sympatric when a subpopulation becomes reproductively isolated in the midst of a parent population
polypliody abrupt formation of a new species form non-disjunction
divergent evolution geographical and reproductive isolation of a population from the main gene pool
adaptive radiation the emergence of many species each adapted to a specific ecological niche
convergent evoloution independent evoloution of adaptive features in different species
parallel evoloution evoloution of similar features not present in the ancestoral form in two or more related species

Set Information

Terms 9
Creator Kelleygiles
Created November 25, 2007
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Most Missed Words

  1. polypliody → abrupt formation of a new species form non-disjunction - 4 misses
  2. divergent evolution → geographical and reproductive isolation of a population from the main gene pool - 4 misses
  3. allopatric speciation → occurs when a popuation is seperated by a geographical barrier - 2 misses
  4. sympatric → when a subpopulation becomes reproductively isolated in the midst of a parent population - 2 misses
  5. adaptive radiation → the emergence of many species each adapted to a specific ecological niche - 1 miss