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Biological Anthropology Test 1 Test

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5 Written Questions

5 Matching Questions

  1. punctuated equilibrium
  2. continuous variation
  3. directional selection
  4. phenotype
  5. genotype
  1. a where there are specific, extreme changes in evolution. Like a square like tree
  2. b ex: height in humans, birthweight
  3. c the shown trait
  4. d where a single phenotype is favored, causing the allele frequency to continuously shift in one direction
  5. e the genetic makeup of a trait

5 Multiple Choice Questions

  1. DNA 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.
  2. where two somewhat related species eventually form a new species
  3. a steady state in which two or more alleles coexist in a population.
  4. a relationship between two populations in which there is no gene flow between them
  5. a FEATURE of an organism CREATED by the process of natural selection.

5 True/False Questions

  1. bottleneck effectoccurs when a population endures a natural disaster and alleles are greatly reduced in diversity

          

  2. what's a nucleotide composed of?a phosphate-sugar base

          

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

          

  4. homologous traitsstructural similarities derived from two species with independent ancestors. Eg. a bat's wing and a human's hands

          

  5. alleleone of two or more alternative forms of a gene

          

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