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What is the primary source of variation in a population?

What is the primary source of variation in a population?
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A Gene flow
  • B Mutation
  • C Natural selection
  • D Genetic drift
Correct Answer: Option B
Explanation:
The primary source of variation in a population is mutation. Mutation is a spontaneous change in the DNA sequence of an organism's genome. It introduces new genetic variations by altering the existing genetic information.

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