Which of the following is used for the safety testing of the polio vaccine?

If a cattle is showing increased respiration and blood mixed foamy discharge from mouth,nose,and anus,it is likely to be suffering from

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

If the nucleus of a donor somatic cell is transferred into an enucleated egg cell,which of the following will be true for the resulting organism?

Transgenic animals are those which have foreign

Define transgenic animals. Explain in detail any four areas where they can be utilised.