The first transgenic cow,'Rosie',was produced in the year .........

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?

Which human protein is produced by the transgenic cow 'Rosie'?

Choose the appropriate option for chemical safety testing.

Match the following:

Column-$I$	Column-$II$
$(1)$ Study of disease	$(p)$ Transgenic mice
$(2)$ Biological products	$(q)$ Testing toxicity of drug
$(3)$ Vaccine safety	$(r)$ Rheumatoid arthritis
$(4)$ Chemical safety	$(s)$ $\alpha-1$ Antitrypsin

In a process where a somatic cell nucleus from a donor is transferred into an enucleated egg cell to produce an organism,which of the following statements is correct?