Today,transgenic models have been developed for many human diseases,which includes
$I$. Rheumatoid arthritis
$II$. Alzheimer's disease
$III$. Cancer
$IV$. Cystic fibrosis
Choose the correct option.

Transgenic animals are those in which ........ .

The first cloned animal is:

Most modern breeds of the domestic dog have evolved as a result of

Consider the following statements:
$I$. Transgenic animals are more sensitive to toxic substances than non-transgenic animals.
$II$. Useful biological products can be produced by introducing into transgenic animals the portion of $DNA$ which codes for a particular product.
$III$. Brazzein is a protein produced by a West African plant,$Pentadiplandra$ $brazzeana$,which is approximately $2000$ times as sweet as sugar.
Which of the statements given above are correct?

Select the incorrect pair.