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Question: Answered & Verified by Expert
Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by:
BiologyBiomolecules (B)NEETNEET 2005
Options:
  • A base-sugar-phosphate
  • B base-sugar-OH
  • C (base-sugar-phosphate).
  • D sugar-phosphate.
Solution:
2849 Upvotes Verified Answer
The correct answer is: base-sugar-phosphate
Each nucleotide consists of, (i) a nitrogenous heterocyclic base which may be purine or pyrimidine. (ii) sugar: deoxyribose (iii) phosphate
Related Theory
Nucleoside $=$ sugar + base (via glycosidic bond)
Nucleotide $=$ Nucleoside + phosphate (via phosphodiester bond)


A Caution
$\rightarrow$ Nucleosides are the structural subunit of nucleic acids such as DNA and RNA Nucleotides are building blocks of nucleic acids DNA and RNA.

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