$AGGTATCGCAT$ is a sequence from the coding strand of a gene. What will be the corresponding sequence of the transcribed $mRNA$?

Which of the following statements are correct?
$i. r-RNA$ provides the template for synthesis of proteins.
$ii. t-RNA$ brings amino acids and reads the genetic code.
$iii. RNA$ polymerase binds to promoter and initiates transcription.
$iv. A$ segment of $DNA$ coding for a polypeptide is called an intron.

If there are $81$ million bases in the $RNA$ of a human cell,calculate the total number of introns present in $cDNA$.

Which of the following is used as a substrate by $\text{RNA}$ polymerase and polymerises in a template-dependent fashion?

Give scientific reasons: Transcription and translation could be coupled in prokaryotic cell but not in eukaryotic cell.

What is the process by which genetic information is transferred from $DNA$ to $RNA$?