$A$ : $c-DNA$ libraries are important to scientists in human genomics.
$R$ : $c-DNA$ is synthetic type of $DNA$ generated from $mRNA$

Protein synthesis in an animal cell occurs

Differentiate between the followings:

$(a)$ Repetitive $DNA$ and Satellite $DNA$

$(b)$ $mRNA$ and $tRNA$

$(c)$ Template strand and Coding strand

Gene controls

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 polypeptide is called intron.