$m-RNA$ is produced in the . . . . . . .

Given below are the two statements.
Statement $I$: Only one strand in the transcription unit functions as a template and is called the antisense strand.
Statement $II$: The non-template strand of the transcription unit is called the sense strand.
In the light of the above statements,choose the correct answer from the options given below.

$RNA$ processing is:

If a $DNA$ strand has the base sequence $5'-AAAA-3'$,then the base sequence of the complementary $m-RNA$ is:

Write a short note on the transcription unit.

Which of the following statements are correct with reference to the prokaryotic genome?
$A$. Monocistronic structural genes
$B$. Introns absent in structural genes
$C$. Transcription and translation are coupled processes
$D$. Primary transcript undergoes splicing
$E$. Only one $RNA$ polymerase is present