$ADA$ deficiency can be cured by

The term 'humulin' is used for

Find the correct statements from the following:
$I.$ Gene therapy is a genetic engineering technique used to treat diseases at the molecular level.
$II.$ Calcitonin is a medically useful recombinant product in the treatment of infertility.
$III.$ Bt toxin is a biodegradable insecticide obtained from $Bacillus \text{ } thuringiensis$.

The genetic disorder Adenosine Deaminase $(ADA)$ deficiency can be cured permanently by:

What are transgenic bacteria? Illustrate using any one example.

$\alpha-1$ antitrypsin is