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CBSE Class 12 · 2003 · Delhi · BiomoleculesShort Answer

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Name the chemical components which constitute nucleotides. Write any two functions of nucleotides in a cell.

Solution

A nucleotide = \textbf{pentose sugar + heterocyclic base + phosphate}.
Functions: (1) they polymerise into DNA and RNA — storing hereditary information and directing protein synthesis; (2) free nucleotides such as ATP act as the cell's energy currency.

CBSE Class 12 Board · 2003 · Delhi · Subjective

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