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7c 7e 7f Evolution Flashcards

Quiz by Kabreena Attaway

High School
Biology (2017)
Texas Essential Knowledge and Skills (TEKS)

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13 questions
Show answers
  • Q1
    What is genetic drift?
    The random changes in the frequency of alleles in a population
    30s
    BIOL.7f
  • Q2
    What are two primary examples of genetic drift?
    Population bottlenecks and the founder effect are examples of genetic drift
    30s
    BIOL.7f
  • Q3
    What events might cause a population bottleneck?
    Overhunting, deforestation, and drastic climate changes can cause a population to decrease rapidly
    30s
    BIOL.7f
  • Q4
    What is founder effect?
    The loss of genetic diversity that happens when a small group of individuals starts a new population
    30s
    BIOL.7f
  • Q5
    What causes genetic recombination?
    Chromosomes cross-over during meiosis creating new combinations of genes
    30s
    BIOL.7f
  • Q6
    When does genetic recombination occur?
    Genetic recombination occurs during meiosis (This is the process which creates gamete cells)
    30s
    BIOL.7f
  • Q7
    What process creates new alleles?
    Mutations create new versions of genes
    30s
    BIOL.7f
  • Q8
    What is gene flow?
    The movement of alleles between two populations of a species
    30s
    BIOL.7f
  • Q9
    How does the theory of gradualism describe evolution?
    One long, continuous process of very slow, gradual change
    30s
    BIOL.7c
  • Q10
    How does the theory of punctuated equilibrium describe evolution?
    Long periods of very little change (stasis) followed by periods of very rapid speciation
    30s
    BIOL.7c
  • Q11
    How are mitochondria and chloroplasts like bacteria?
    They are similar in size, have circular chromosomes, and reproduce through binary fission
    30s
    BIOL.7e
  • Q12
    What is the theory of abiogenesis?
    The theory that life originated from non-living substances through natural processes
    30s
    BIOL.7e
  • Q13
    Which molecules store information needed for life?
    DNA and RNA store the information needed for life
    30s
    BIOL.7

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