Which of the following statements are correct?
$(i)$ From one molecule of $\text{DNA}$,several molecules of $\text{RNA}$ can be formed.
$(ii)$ The $\text{RNA}$ forming part is known as the translational unit.
$(iii)$ The promoter is located at the $5'$ upstream end.
$(iv)$ The promoter and terminator flank the structural gene in a transcription unit.

In processing of eukaryotic $hnRNA$,during protein synthesis,tailing involves . . . . . . of $RNA$.

During elongation of the polypeptide chain, the sigma factor is

If the sequence of the coding strand in a $\text{DNA}$ molecule is $\text{5'-ATCGATCGACTG-3'}$,then the sequence of $\text{RNA}$ transcribed from the template strand would be:

If $RNA$ polymerase $III$ is removed from the nucleoplasm,which of the following will be affected?

Given below are two statements, one is labelled Assertion $(A)$ and the other is labelled as Reason $(R)$.
Assertion $(A) :$ In eukaryotes, primary transcripts $(hnRNA)$ contain both exons and introns, and introns are non-functional.
Reason $(R) :$ In bacteria, the $mRNA$ does not require any processing, and transcription and translation take place in the same compartment.
In the light of the above statements, choose the most appropriate answer from the options given below $:$