D4.1 Natural selection

D4.1 Natural selection Quiz

IB Biology HL: Quiz

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5 questions, one answer each

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  1. 1. Which generates new combinations of alleles but not new alleles?

    • A. Mutation
    • B. Sexual reproduction
    • C. Natural selection
    • D. Gene flow

  2. 2. HL: 9% of a population show a recessive phenotype. What is p?

    • A. 0.09
    • B. 0.3
    • C. 0.7
    • D. 0.91

  3. 3. HL: Which selection favours both extremes?

    • A. Directional
    • B. Stabilizing
    • C. Disruptive
    • D. Artificial

  4. 4. HL: Which would cause a population to deviate from Hardy–Weinberg equilibrium?

    • A. Random mating
    • B. Large population size
    • C. Individuals choosing mates similar to themselves
    • D. No migration

  5. 5. HL: Selective breeding of dairy cattle for high milk yield is:

    • A. Natural selection
    • B. Artificial selection
    • C. Sexual selection
    • D. Disruptive selection by predators

Quiz