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

What is the sequence of mRNA if the sequence of the coding strand in a transcription unit is written as $5'-ATGCATGCA-3'$?

If the base sequence of one strand of $DNA$ is $CAT, TAG, CAT, CAT, GAC$,what would be the base sequence of its complementary $RNA$?

In eukaryotes,the $mRNA$ that is initially transcribed is called:

Compare the statements $A$ and $B$.
$Statement A$: $RNA$ produced during transcription in eukaryotic cells cannot be straight away used in translation.
$Statement B$: $RNA$ splicing phenomena helps in the removal of exons.
Choose the correct description.

During elongation of the polypeptide chain, the sigma factor is