In the given transcription unit,identify the regions $I$ and $II$ respectively.

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.

The portion of a gene that is transcribed but not translated is known as:

Prokaryotic transcription mechanism requires the involvement of only one polymerase type and:
$(a)$ It occurs in the cytoplasm only.
$(b)$ It is often coupled with translation.
$(c)$ It does not require splicing but capping is essential.

The codon sequence on the coding strand of a transcription unit is $ATG \ GUG \ AGC \ TAC \ GCG$. What will be the codon sequence on the $mRNA$ formed from the template strand?

Which of the following is not a part of a transcription unit in $DNA$?