The $C$-peptide is .......

Desired genes have been introduced into transgenic animals to obtain large-scale production of useful biological products encoded by these genes. This approach is generally referred to as

Enzyme used in $ELISA$ test is

$P -$ Methods capable of early diagnosis
$Q -$ Methods not capable of early diagnosis
$I - rDNA$ technology $\quad II -$ Serum analysis $\quad III - PCR$
$IV -$ Urine analysis $\quad V - ELISA$
Select the correct option for $P$ and $Q$.
$P\quad\quad Q$

How is a permanent cure for $ADA$ deficiency possible?

Goeddel and his associates biosynthesized the $HGH$ by genetic engineering by: