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Unit 7 Natural Selection 词汇题

Quiz by Zhao

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50 questions
Show answers
  • Q1
    Which process results in certain heritable traits becoming more common in a population over time?
    Mutation
    Genetic drift
    Natural selection
    Gene flow
    30s
  • Q2
    Competition for what drives differential survival according to Darwin?
    Abiotic factors
    Genetic drift
    Random mating
    Limited resources
    30s
  • Q3
    What term describes the observable characteristics of an organism?
    Allele
    Gamete
    Phenotype
    Genotype
    30s
  • Q4
    What term refers to an organism’s genetic makeup?
    Genotype
    Phenotype
    RNA sequence
    Codon
    30s
  • Q5
    Which measure indicates an individual’s contribution to the gene pool of the next generation?
    Mutation rate
    Evolutionary fitness
    Carrying capacity
    Genetic drift
    30s
  • Q6
    Which environmental factor includes interactions with other organisms?
    Abiotic environment
    Biotic environment
    Niche
    Phenotype
    30s
  • Q7
    Which environmental factor includes nonliving physical conditions?
    Abiotic environment
    Fitness
    Biotic environment
    Phenotype
    30s
  • Q8
    What is the term for differences in traits among individuals in a population?
    Phenotypic variation
    Bottleneck
    Speciation
    Allele frequency
    30s
  • Q9
    What type of evolution leads to similar traits in unrelated lineages?
    Genetic drift
    Divergent evolution
    Convergent evolution
    Adaptive radiation
    30s
  • Q10
    What human‐driven process selects for desired traits in organisms?
    Genetic drift
    Natural selection
    Bottleneck effect
    Artificial selection
    30s
  • Q11
    Which field studies allele frequency changes in populations?
    Taxonomy
    Population genetics
    Molecular biology
    Ecology
    30s
  • Q12
    Which evolutionary driver occurs by chance and is nonselective?
    Mutation
    Genetic drift
    Gene flow
    Natural selection
    30s
  • Q13
    What random change in DNA sequence can introduce new genetic variation?
    Hardy‑Weinberg equilibrium
    Founder effect
    Bottleneck
    Mutation
    30s
  • Q14
    What process alters allele frequencies by chance in small populations?
    Speciation
    Natural selection
    Genetic drift
    Gene flow
    30s
  • Q15
    Which random event drastically reduces genetic diversity after catastrophic reduction?
    Gradualism
    Founder effect
    Bottleneck
    Punctuated equilibrium
    30s

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