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Which of the following is a major cause of variation among organisms?

Which of the following is a major cause of variation among organisms?
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A Inbreeding
  • B Backcrossing
  • C Sexual reproduction
  • D Gene dominance
Correct Answer: Option D
Explanation:

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