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PUCET (Punjab) Evolutionary Forces — practice questions

Explore 1 free Evolutionary Forces questions in PUCET (Punjab) Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Evolutionary Forces questions and exercises with answers

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Which of the following is **not** a force that changes allele frequencies (causing evolution)?Read the answer and worked solution →

Worked practice questions

Which of the following is **not** a force that changes allele frequencies (causing evolution)?

  1. Mutation
  2. Natural selection
  3. Genetic drift
  4. Random mating in a large population
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Correct answer: D. Random mating in a large population

Random mating in a large population (one of Hardy-Weinberg's assumptions) does NOT change allele frequencies. Mutation introduces new alleles selection favours some over others drift randomly fluctuates them gene flow exchanges them. Random mating only redistributes existing alleles among genotypes.

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