Consider the following statements (A–D) related to transcription and select the correct option stating which ones are true (T) and which ones are false (F).

A. In transcription, only a segment of DNA and only one of the strands is copied into RNA.

B. There are primarily three regions in a transcription unit: promoter, repressor and terminator.

C. The DNA strand that has polarity 3'–5' acts as template and it referred to as antisense strand.

D. In a transcription unit, the promoter is located towards 5' end (upstream) of the coding strand.

Match the animals of Column $\mathrm{I}$ with Column $\mathrm{II}$ and select the correct options among the following:

Select the code for the correct answer from the options given below.

In the given transcription unit, identify the regions $\mathrm{I}$ and $\mathrm{II}$ respectively. Coding strand

Two of the following statements are correctly defined. Identify the correct combination

i) Conversion of hnRNA to mRNA - processing

ii) Removal of introns and joining of exons - splicing

iii) Addition of adenylate residues to $3\text{'}$- end in a template dependent manner - Tailing

iv) Methyl adenosine triphosphate is added to $5\text{'}$ - end of hnRNA - capping