At present,about $X$ recombinant therapeutics have been approved for human use the world over. Out of these,$Y$ are being marketed in India.

The first human drug made by using genetic engineering technique was

Which scientist obtained interferon using recombinant $DNA$ technology?

Given below is the sequence of events in the production of human insulin by Eli Lilly.
$(a)$ Preparation of two $DNA$ sequences corresponding to chain $A$ and $B$ of human insulin.
$(b)$ Production of chain $A$ and $B$ separately.
$(c)$ Introduction of chains in plasmids of $E. coli$.
$(d)$ Extraction of chain $A$ and $B$ and combining them by creating disulphide bonds.
Choose the correct sequence of events.

The first human hormone prepared by using recombinant $DNA$ technology is?

Match the following and choose the correct option$-$

Column $I$	Column $II$
$(a)$ Eli Lilly	$(i)$ Bacillus thuringiensis
$(b)$ Bt	$(ii)$ Human insulin
$(c)$ Gene therapy	$(iii)$ Meloidogyne incognita
$(d)$ $\text{RNAi}$	$(iv)$ Adenosine deaminase deficiency