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5 Written questions

5 Matching questions

  1. allopatric speciation
  2. stabilizing selection
  3. anagenesis
  4. diploid
  5. bottleneck effect
  1. a 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.
  2. b speciation that occurs when two or more populations of a single species are geographically isolated from each other and then diverge to form two or more new species
  3. c occurs when a population endures a natural disaster and alleles are greatly reduced in diversity
  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 a gradual transformation of one species to another

5 Multiple choice questions

  1. genes that influence multiple traits
  2. evolution of populations within a species
  3. two-step process in speciation where selection causes the differentiation of geographically separate, isolated populations of a species and the populations become reproductively isolated as well
  4. a hypothesis that speciation can result from selective pressures favoring different phenotypes within a population without geographic isolation as a factor
  5. the shown trait

5 True/False questions

  1. adaptationa spontaneous change in the chemical structure of DNA


  2. What are the differences between DNA and RNADNA is double stranded while RNA is single stranded, DNA has only a nucleus but RNA can have a nucleus or a cytoplasm, the main ingredient in DNA is Thymine while in RNA it's Uracil.


  3. balanced polymorphisma steady state in which two or more alleles coexist in a population.


  4. natural selectionwhere a single phenotype is favored, causing the allele frequency to continuously shift in one direction


  5. polygenicthe evolutionary relationships among a group of species. diagrammed as a family tree


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