Uracil in RNA replaces which base in DNA?

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Multiple Choice

Uracil in RNA replaces which base in DNA?

Explanation:
Uracil in RNA replaces thymine in DNA. DNA uses thymine, while RNA uses uracil (A pairs with T in DNA, but with U in RNA). Structurally, uracil is thymine without the 5-methyl group, which is why RNA employs uracil instead of thymine. During transcription, the RNA transcript incorporates uracil where the DNA would have thymine, so thymine is the base that is replaced in DNA.

Uracil in RNA replaces thymine in DNA. DNA uses thymine, while RNA uses uracil (A pairs with T in DNA, but with U in RNA). Structurally, uracil is thymine without the 5-methyl group, which is why RNA employs uracil instead of thymine. During transcription, the RNA transcript incorporates uracil where the DNA would have thymine, so thymine is the base that is replaced in DNA.

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