$A$ drug obtained through genetic engineering and useful for treating infertility is

Which protein is used for the treatment of emphysema?

The first biochemical to be produced commercially by microbial cloning and genetic engineering is:

In $1983$, Eli Lilly, an American company, prepared two $DNA$ sequences corresponding to $A$ and $B$ chains of human insulin and introduced them in plasmids of which organism to produce insulin chains?

In which bacteria was the insulin gene cloned?

$ELISA$ technique is based on the principles of antigen-antibody interaction. Can this technique be used in the molecular diagnosis of a genetic disorder,such as phenylketonuria?