If both strands of $DNA$ were to act as templates during transcription,then:

Which one of the following processes is exclusively concerned with transcription?

$RNA$ polymerase-$I$ transcribes eukaryotic ribosomal $RNA$ which does not consist of: (in $S$ $rRNA$)

Transcription is defined as.........

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.

Give scientific reasons: Both the strands of $DNA$ are not copied during transcription.