Kohler and Milstein developed biotechnology for the production of

What side effect was observed in some patients due to the use of animal-derived insulin?

When a gene is targeted to correct a disease by amplifying the gene,what is this process called?

Abnormal genes are replaced by normal genes through:

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 $Bacillus \text{ } thuringiensis$.

In transgenics,the expression of transgene in the target tissue is known by: