The number of nitrogenous bases common in both DNA and RNA are
Correct answer: B. 3
- A. 2
- B. 3
- C. 5
- D. 4
Explanation
Building blocks of nucleic acids, i.e., DNA and RNA. A nucleotide consists of a sugar molecule attached to a phosphate group and a nitrogen-containing base. The bases used in DNA are adenine (A), cytosine (C), guanine (G), and thymine (T). In RNA, thymine (T) is replaced by uracil (U). Thus, adenine, cytosine, and guanine are common in DNA and RNA.
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About Ribonucleic Acid (RNA)
Ribonucleic acid is generally a single-stranded nucleic acid containing ribose and uracil instead of thymine. Coverage includes mRNA, tRNA and rRNA, complementary base pairing, transcription and translation, and the differences between RNA and DNA in structure, location and biological function.
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