Changes in gene frequencies in small population by chance is called:
Correct answer: B. Genetic drift
- A. Gene pool
- B. Genetic drift
- C. Gene mutation
- D. Gene flow
Explanation
Genetic drift is a mechanism of evolution, it refers to random fluctuations in the frequencies of alleles from generation to generation due to chance of events, therefore the answer will be B.
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About Concept of Evolution
Evolution is the heritable change in populations over generations, driven by mutation, recombination, natural selection, genetic drift and reproductive isolation. Questions examine variation, adaptation, survival and reproduction, speciation, fossil and anatomical evidence, and the difference between individual acclimatization and evolutionary change in a population.
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