Scelta multipla
Which nitrogenous bases are found in RNA?
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7. DNA and Chromosome Structure
RNA
Scelta multipla
Which of the following nitrogenous bases is not found in RNA?
A
Thymine
B
Uracil
C
Cytosine
D
Adenine
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Recall that RNA (ribonucleic acid) and DNA (deoxyribonucleic acid) are nucleic acids composed of nitrogenous bases, sugars, and phosphate groups.
Identify the four nitrogenous bases found in RNA: Adenine (A), Uracil (U), Cytosine (C), and Guanine (G).
Recall that DNA contains Adenine (A), Thymine (T), Cytosine (C), and Guanine (G), but RNA replaces Thymine with Uracil.
Compare the given options (Thymine, Uracil, Cytosine, Adenine) to the bases found in RNA and DNA.
Conclude that Thymine is the nitrogenous base not found in RNA, as it is replaced by Uracil in RNA molecules.
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