Sir Godfrey Hounsfield developed the diagnostic technique of

In $1983$,Eli Lilly,an American company,first prepared two $DNA$ sequences corresponding to $A$ and $B$-chains of human insulin and introduced them into the plasmids of $Escherichia$ $coli$ to produce insulin chains. Chains $A$ and $B$ were prepared separately,extracted,and combined by creating:

Which of the following are considered second-generation vaccines?

Statement-$I$: At present,$30$ recombinant therapeutics have been approved for human use the world over.
Statement-$II$: Recombinant therapeutics do not induce unwanted immunological responses,as is common in the case of similar products isolated from non-human sources.
Choose the correct answer from the options given below:

In the earlier times,the insulin used for diabetic patients was:

An example of gene therapy is .......