alleryStart learning →Which bases are present in DNA and which in RNA?
ADNA has A, U, G and C, while RNA has A, T, G and C
BDNA has A, T, G and C, while RNA has A, U, G and C
CDNA has A, T, G and U, while RNA has A, U, G and C
DDNA has A, T, C and U, while RNA has A, G, C and T
Answer & Solution
Correct answer: B. DNA has A, T, G and C, while RNA has A, U, G and C
1. Both nucleic acids carry adenine, guanine and cytosine.
2. The fourth base is what separates them.
3. DNA contains thymine, so its set is A, T, G and C.
4. RNA contains uracil in place of thymine, so its set is A, U, G and C.
5. Swapping the two sets, as the first option does, would put thymine into RNA where it is absent.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 3 "Biological Macromolecules", section 3.5 Nucleic Acids_
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