If genetic contribution to variation in a trait is negligible: A. identical twin

Question

If genetic contribution to variation in a trait is negligible: A. identical twins will be more similar to one another than fraternal twins are to one another. B. None of the answer options is correct. C. identical twins will be no more similar to one another than are fraternal twins. D. fraternal twins will be more similar to one another than identical twins are to one another. E. identical twins will be resemble one another more closely than do any other siblings. If genetic contribution to variation in a trait is negligible: A. identical twins will be more similar to one another than fraternal twins are to one another. B. None of the answer options is correct. C. identical twins will be no more similar to one another than are fraternal twins. D. fraternal twins will be more similar to one another than identical twins are to one another. E. identical twins will be resemble one another more closely than do any other siblings.

Explanation / Answer

Answer: - Correct answer is C. Identical twins will be no more similar to one another than are fraternal twins.

In case of negligible genetic contribution towards variation identical twins will be no more similar to one another than each is to any other sibling. Fraternal twins usually occur when two fertilized eggs are implanted in the uterus at the same time, they are essentially two ordinary siblings who happen to be born at the same time.

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