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BIO NMDCAT Ribonucleic acid (RNA)
nmdcat.online July 3, 2026

2. In a mature RNA molecule, the nitrogenous base that replaces thymine is

A. Adenine
B. Guanine
C. Cytosine
D. Uracil
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📝 Explanation

Uracil is a pyrimidine base specific to RNA that pairs with adenine, replacing the thymine found in DNA.

📖 Additional Information

  • Adenine
  • Guanine
  • Cytosine
  • Uracil

Uracil is a pyrimidine base specific to RNA that pairs with adenine, replacing the thymine found in DNA.

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