Presence of slight differences in identical twins support the hypothesis that___________________?
Correct answer: C. The environment effects the expression of genetic character
- A. Single gene may produce multiple effects
- B. Dominance may be incomplete
- C. The environment effects the expression of genetic character
- D. Genetic trails are influence by many genes
Explanation
Identical twins have essentially the same genotype, so differences between them show that environmental conditions can alter the expression of genetic traits. This demonstrates genotype-environment interaction rather than a difference in their genes.
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