$A$ : Sigma factor of $RNA$ polymesase recognizes the start signal region in prokaryotes.
$R$ : Promotor region lies at $5^{\prime}$ of template strand, $?$
Assertion and Reason both are correct and also correct explanation.
Assertion and Reason both are correct but not explanation of assertion.
Assertion is correct, but Reason is incorrect.
Both Assertion and Reason are incorrect.
Transcription is a process by which
Definitions/Explanation : Cistron & terminator
Give an account of post transcriptional modifications of a eukaryotic $m-RNA$ .
Which of the following statements about $RNA$ polymerase are correct?
$i. \;RNA\; polymerase \;I \;transcribes \;rRNAs$.
$ii. \;RNA \;polymerase \;II \;transcribes \;snRNAs.$
$iii. \;RNA \;polymerase \;III \;transcribes \;hnRNA.$
$iv. \;RNA \;polymerase \;II \;transcribes \;hnRNAs.$