Which of the following is a major cause of variation among organisms?
- Inbreeding
- Backcrossing
-
Sexual reproduction
- Gene dominance
The correct answer is: C
Explanation
The major cause of the evolution of organisms is sexual reproduction; during sexual reproduction, meiosis produces gametes, and during meiosis reshuffling of gametes occurs and brings variations. these variations are passed from one parent to the offspring.
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