LABORATORY REVIEW
MOLECULAR BIOLOGY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What replaces thymine in the RNA?
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adenine
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uracil
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guanine
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cytosine
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Explanation:
Detailed explanation-1: -DNA (top) includes thymine (red); in RNA (bottom), thymine is replaced with uracil (yellow).
Detailed explanation-2: -Uracil (U) is one of the four nucleotide bases in RNA, with the other three being adenine (A), cytosine (C) and guanine (G). In RNA, uracil pairs with adenine. In a DNA molecule, the nucleotide thymine (T) is used in place of uracil.
Detailed explanation-3: -In RNA instead of thymine, uracil is present.
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