About what percentage of all existing transgenic animals are mice?

The first cloned animal is:

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

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

Transgenic animals are animals in which a foreign gene is expressed. Such animals can be used to study fundamental biological processes and phenomena, as well as for producing products useful for mankind. Give one example for each type.

Genetic engineering has been successfully used for producing