CBSE 2025 · Region 2 · Set 1 · Q6 · 1 mark
The phosphoester linkage in the nucleotides is between
Official answer
From CBSE’s own marking scheme for this paper.
(B)
phosphate group and OH of $\displaystyle 5$'C of a nucleoside.
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CBSE Class 12 Biology past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.