CBSE 2025 · Region 5 · Set 1 · Q12 · 1 mark
The correct depiction of the centrifugation step of the experiment conducted by Alfred Hershey and Martha Chase on using radioactive labelled phages to prove that DNA is the genetic material is :
Official answer
From CBSE’s own marking scheme for this paper.
(A)
Molecular Basis of InheritanceThe Search for Genetic MaterialRemembermcqmedium
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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.