The given figure represents pro-insulin. Identify the $A, B$ and $C$ peptides corresponding to $P, Q$ and $R$ respectively.

Which of the following statements is not correct?

Which of the following statements are false?
$I$. Insulin for curing diabetes,used to be extracted from the pancreas of slaughtered pig and cattle.
$II$. Animal insulin is slightly different from human insulin.
$III$. Animal insulin causes some undesirable side effects such as allergy.
$IV$. Bacteria cannot be made to synthesise insulin from its gene because of the presence of introns.
Choose the correct option.

Name of the drug used in cancer treatment produced by using biotechnology is:

The first hormone prepared by genetic engineering is:

What is produced from yeast?