Segments of $mRNA$ removed during splicing are called......

If the sequence of the coding strand in a transcription unit is written as follows:
$5'-ATGCATGCATGCATGCATGCATGCATGC-3'$. Write down the sequence of $mRNA$.

$A$: Single $DNA$ dependent $DNA$ polymerase catalyses transcription of all types of $RNA$ in all except bacteria.
$R$: Structural genes in bacteria are monocistronic.

What is the primary role of prokaryotic $RNA$ polymerase in the process of transcription?

The given figure represents a transcription unit. Select the correct option from the following.
Coding strand $\quad\quad$ Promoter

What initiation and termination factors are involved in transcription in Eukaryotes?