Which of the following statements about $RNA$ polymerase are correct?

$i. \;RNA\; polymerase \;I \;transcribes \;rRNAs$.

$ii. \;RNA \;polymerase \;II \;transcribes \;snRNAs.$

$iii. \;RNA \;polymerase \;III \;transcribes \;hnRNA.$

$iv. \;RNA \;polymerase \;II \;transcribes \;hnRNAs.$

The coding strand of $DNA$ is :

$5'AATTCAAATTAGG3'$

What is the sequence of $mRNA$ ?

$AGGTATCGCAT$ is a sequence from the coding strand of a gene. What will be the corresponding sequence of the transcribed $mRNA$?

Definitions/Explanation : Exons & Introns

Definitions/Explanation : Capping & Tailing
 

Non-genetic $RNA$ is of