CBSE 2026 · Region 1 · Set 3 · Q9 · 1 mark
Expression of a particular gene helps to identify transformants. What is this gene known as?
Official answer
From CBSE’s own marking scheme for this paper.
(C)
Selectable marker
Biotechnology : Principles and ProcessesProcesses of Recombinant DNA TechnologyRemembermcqmedium
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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.