Who among the following scientists is associated with the discoveries in genetic engineering?

Both a wine maker and a molecular biologist who had developed a recombinant vaccine claim to be biotechnologists. Who in your opinion is correct?

What is the fate of a piece of $DNA$ carrying only the gene of interest which is transferred into an alien organism?
$A$. The piece of $DNA$ would be able to multiply itself independently in the progeny cells of the organism.
$B$. It may get integrated into the genome of the recipient.
$C$. It may multiply and be inherited along with the host $DNA$.
$D$. The alien piece of $DNA$ is not an integral part of the chromosome.
$E$. It shows the ability to replicate.
Choose the correct answer from the options given below:

Which of the following is the most accepted definition of biotechnology by the European Federation of Biotechnology $(EFB)$?

Genetic engineering is the

The two main techniques that gave birth to modern biotechnology are
$I.$ Chemical engineering
$II.$ Genetic engineering
$III.$ Human genome engineering
$IV.$ Molecular biology
Choose the correct option.