CBSE 2025 · Region 1 · Set 1 · Q9 · 1 mark
The sequence of nitrogenous bases in a segment of a coding strand of DNA is $\displaystyle 5$' - AATGCTAGGCAC - $\displaystyle 3$'. Choose the option that shows the correct sequence of nitrogenous bases in the mRNA transcribed by the DNA.
Official answer
From CBSE’s own marking scheme for this paper.
(B)
$\displaystyle 5$' - AAUGCUAGGCAC - $\displaystyle 3$'
Molecular Basis of InheritanceTranscriptionApplymcqmedium
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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.