A: Sigma factor of RNA polymerase recognizes | vedclass

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Question

(C) $1$. The Assertion is correct: In prokaryotes, the $RNA$ polymerase enzyme consists of a core enzyme and a sigma ($\sigma$) factor. The sigma fact

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Assertion is correct, but Reason is incorrect.

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(C) $1$. The Assertion is correct: In prokaryotes, the $RNA$ polymerase enzyme consists of a core enzyme and a sigma ($\sigma$) factor. The sigma factor specifically recognizes the promoter site and initiates transcription.$2$. The Reason is incorrect: The promoter region is defined with respect to the coding strand. It is located at the $5'$ end of the coding strand (upstream), not the template strand. Therefore, the statement in the Reason is scientifically inaccurate.

Column-$I$ (Enzyme)	Column-$II$ (Product)
$P$. $RNA$ polymerase-$I$	$I$. $rRNA$ $(18S, 28S, 5.8S)$
$Q$. $RNA$ polymerase-$II$	$II$. $tRNA, 5S rRNA, snRNAs$
$R$. $RNA$ polymerase-$III$	$III$. $hnRNA$

$A$: Sigma factor of $RNA$ polymerase recognizes the start signal region in prokaryotes.
$R$: Promoter region lies at $5'$ end of the coding strand, not the template strand.

Similar Questions

Which sequences do not code for $RNA$ or proteins?

Which one of the following is not a part of a transcription unit in $DNA$?

Match the following columns:
Column-$I$ (Enzyme) Column-$II$ (Product)
$P$. $RNA$ polymerase-$I$ $I$. $rRNA$ $(18S, 28S, 5.8S)$
$Q$. $RNA$ polymerase-$II$ $II$. $tRNA, 5S rRNA, snRNAs$
$R$. $RNA$ polymerase-$III$ $III$. $hnRNA$

$RNA$ polymerase $II$ transcribes which type of $RNA$?

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$A$: Sigma factor of $RNA$ polymerase recognizes the start signal region in prokaryotes.$R$: Promoter region lies at $5'$ end of the coding strand, not the template strand.