Genetic drift MOST likely occurs when the population's
Correct answer: A. Size is very small
- A. Size is very small
- B. Gene pool is diverse
- C. Rate of reproduction is high
- D. Species are protected and conserved
Explanation
The correct answer is that genetic drift is most likely to occur when the population size is very small. In small populations, random events can lead to significant changes in allele frequencies from one generation to the next, purely by chance. This can lead to the loss of genetic variation and can have significant evolutionary consequences over time.Option B, a diverse gene pool, does not directly lead to genetic drift, as drift is about random changes rather than the diversity of alleles. Option C, a high rate of reproduction, affects the potential for genetic variation but is not directly related to the concept of drift. Option D, species protection and conservation, are efforts to maintain species but do not influence the random nature of genetic drift.
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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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