CBSE 2026 · Region 1 · Set 2 · Q11 · 1 mark
Which one of the following is not a component required for Polymerase Chain Reaction (PCR) ?
Official answer
From CBSE’s own marking scheme for this paper.
(C)
DNA Ligase
Biotechnology : Principles and ProcessesProcesses of Recombinant DNA TechnologyRemembermcqeasy
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CBSE Class 12 Biology past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.