Question on: JAMB Biology - 2023
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What is the primary source of variation in a population?
A
Gene flow
B
Mutation
C
Natural selection
D
Genetic drift
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Correct Option: B
Mutation is the primary source of genetic variation in a population. Mutations are random changes in the DNA sequence of an organism's genes, and they can introduce new alleles or traits into a population.
Gene flow involves the exchange of genetic material between populations, natural selection acts on existing variations, and genetic drift refers to random changes in allele frequencies in a population due to chance events.
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