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5 Written questions

5 Matching questions

  1. chromosomes
  2. natural selection
  3. diploid
  4. homologous traits
  5. reproductive isolation
  1. a a relationship between two populations in which there is no gene flow between them
  2. b carries genes and appears during cell division
  3. c structural similarities derived from two species with independent ancestors. Eg. a bat's wing and a human's hands
  4. d refers to cells that have pairs of homologous chromosomes, where one chromosome of each pair is inherited from each parent. All primates are diploid
  5. e the process that produces adaptation

5 Multiple choice questions

  1. a hypothesis that speciation can result from selective pressures favoring different phenotypes within a population without geographic isolation as a factor
  2. selection pressuresd that favor average phenotypes. Stabilizing sleection reduces the amount of variation in the population but doesn't alter the mean value of the trait.
  3. driving force behind sympatric speciation extreme values for a trait are favored over intermediate values. E.g.: large nose rather than medium sized nose
  4. a FEATURE of an organism CREATED by the process of natural selection.
  5. the form and structure of an organism

5 True/False questions

  1. character displacementthe process that produces adaptation


  2. pleiotropythe shown trait


  3. continuous variationex: height in humans, birthweight


  4. genetic driftthe transfer of alleles of genes from one population to another


  5. founder effectoccurs when a new colony is started by a few peope from the original population. Not much diversity, usually mutations.


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