Question

    The pyrimidine base that replaces thymine in RNA as against DNA is

    A uracil Correct Answer Incorrect Answer
    B guanine Correct Answer Incorrect Answer
    C cytosine Correct Answer Incorrect Answer
    D adenine Correct Answer Incorrect Answer

    Solution

    The pyrimidine base that replaces thymine in RNA as opposed to DNA is "uracil." In RNA, adenine (A) still pairs with uracil (U), just as adenine in DNA pairs with thymine (T).

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