CBSE 2023 · Region 1 · Set 1 · Q2 · 1 mark
Identify the region 'X', the factor 'Y' and the enzyme 'Z' involved in the process of transcription in prokaryote as shown in the schematic representation given below.
Region 'X' Factor 'Y' Enzyme 'Z' (a) Terminator Sigma $\displaystyle (\sigma)$ RNA polymerase (b) Promoter Rho ( $\displaystyle \rho$ ) RNA polymerase (c) Promoter Sigma $\displaystyle (\sigma)$ RNA polymerase (d) Promoter Sigma $\displaystyle (\sigma)$ DNA polymerase
| Region 'X' | Factor 'Y' | Enzyme 'Z' | |
| (a) | Terminator | Sigma $\displaystyle (\sigma)$ | RNA polymerase |
| (b) | Promoter | Rho ( $\displaystyle \rho$ ) | RNA polymerase |
| (c) | Promoter | Sigma $\displaystyle (\sigma)$ | RNA polymerase |
| (d) | Promoter | Sigma $\displaystyle (\sigma)$ | DNA polymerase |
Official answer
From CBSE’s own marking scheme for this paper.
(C)
Molecular Basis of InheritanceTranscriptionRemembermcqmedium
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CBSE Class 12 Biology past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.