Which of the following is not a region of a transcription unit?

Identify $(a)$, $(b)$ and $(c)$ based on the provided image of the transcription process.

The $DNA$ strand that does not code for anything is called the ..........

The non-template strand of $DNA$ contains the codons $CAG, TCG, GAT$. What will be the base sequence in the $m-RNA$?

Which of the following statements about $RNA$ polymerase are correct?
$i. \;RNA\; \text{polymerase } I \text{ transcribes } rRNAs.$
$ii. \;RNA \; \text{polymerase } II \text{ transcribes } snRNAs.$
$iii. \;RNA \; \text{polymerase } III \text{ transcribes } hnRNA.$
$iv. \;RNA \; \text{polymerase } II \text{ transcribes } hnRNAs.$

Which is the "Only enzyme" that has the "Capability" to catalyse initiation,elongation,and termination in the process of transcription in prokaryotes?