Hardy-Weinberg and speciation

Hardy-Weinberg and speciation Quiz

Spec 4.5 · Edexcel A-Level Biology A: Quiz

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  1. 1. In a population in Hardy-Weinberg equilibrium the frequency of allele A is 0.8. What is the frequency of heterozygotes?

    • A. 0.16
    • B. 0.32
    • C. 0.64
    • D. 0.20

  2. 2. Albinism, a recessive condition, affects 1 in 400 people. What is the frequency of the albinism allele?

    • A. 0.0025
    • B. 0.025
    • C. 0.05
    • D. 0.5

  3. 3. Which condition is NOT needed for Hardy-Weinberg equilibrium?

    • A. A small population
    • B. Random mating
    • C. No selection
    • D. No migration

  4. 4. Two groups of crickets live in the same field but one breeds in spring and the other in autumn. What type of isolation is this?

    • A. Geographical
    • B. Behavioural
    • C. Seasonal
    • D. Genetic

  5. 5. Why can geographical isolation lead to speciation?

    • A. Individuals choose different mates
    • B. There is no gene flow, so mutations and selection change the allele frequencies differently
    • C. The barrier causes the same mutations in both populations
    • D. All the alleles are lost in one population

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