Scelta multipla
Which set correctly lists the nitrogenous bases found in RNA?
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7. DNA and Chromosome Structure
RNA
Scelta multipla
In RNA, which of the following nitrogenous bases is typically not found?
A
Uracil
B
Adenine
C
Cytosine
D
Thymine
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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 typically found in RNA: Adenine (A), Uracil (U), Cytosine (C), and Guanine (G).
Understand that DNA contains Thymine (T) instead of Uracil, so Thymine is generally not present in RNA molecules.
Compare the given options (Uracil, Adenine, Cytosine, Thymine) with the typical RNA bases to determine which one is not found in RNA.
Conclude that Thymine is the nitrogenous base typically absent in RNA, replaced by Uracil in RNA structure.
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