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of 41 available terms

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5 Written Questions

5 Matching Questions

  1. balanced polymorphism
  2. mitosis
  3. character displacement
  4. polygenic
  5. cladogenesis
  1. a the result of competition between two species that causes the members of different species to become morphologically or behaviorally more different from each other
  2. b the process of division of normal body cells through which new diploid cells are created
  3. c a steady state in which two or more alleles coexist in a population.
  4. d many genes?
  5. e where two somewhat related species eventually form a new species

5 Multiple Choice Questions

  1. phenotypic variation in which there are a discrete number of phenotypes with no intermediate types. Ex: pea color in Mendel's experiment
  2. driving force behind sympatric speciation extreme values for a trait are favored over intermediate values. E.g.: large nose rather than medium sized nose
  3. where a single phenotype is favored, causing the allele frequency to continuously shift in one direction
  4. the transfer of alleles of genes from one population to another
  5. the process of cell division in which haploid gametes (eggs and sperm) are creatred

5 True/False Questions

  1. gradualismopposite of punctuated equilibrium


  2. stabilizing selectionselection 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. sympatric speciationa hypothesis that speciation can result from selective pressures favoring different phenotypes within a population without geographic isolation as a factor


  4. microevolutionevolution of new species, families, and higher taxes


  5. diploidthe process of division of normal body cells through which new diploid cells are created


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