Which of the following animals are the most common transgenic animals?

The maximum number of existing transgenic animals is of:

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.

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

The first cloned animal is:

What was the name given to the first transgenic cow?