What does $In$ $vitro$ mean?

Give general information about the origin of the recombinant $DNA$ molecule.

When did Cohen and Boyer complete the construction of the first $r-DNA$ by isolating an antibiotic resistance gene?

Genetic engineering is defined as .......

What is the origin of replication $(ori)$?

The critical research areas of biotechnology are:
$I$. Providing the best catalyst as an improved organism,usually a microbe or pure enzyme.
$II$. Creating optimal conditions through engineering for a catalyst to act.
$III$. Downstream processing technologies.
$IV$. Multiple Ovulation Embryo Transfer Technology $(MOET)$.
Which of the statements given above are correct?