CBSE 2026 · Region 4 · Set 2 · Q11 · 1 mark
The construction of the first recombinant DNA was done by using the native plasmid of :
Official answer
From CBSE’s own marking scheme for this paper.
(B)
Salmonella typhimurium
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.