What are transgenic animals

Neither science nor society may be ready for the direct manipulation of the human genome, but a technique for directing the genetic make-up of animals is being used in some of the most exciting biomedical research today
This technique involves inserting a foreign gene into the chromosome of an animal
The animal, called transgenic, then expresses that gene along with its normal genes
Transgenic animals are animals whose hereditary properties have been permanently modified by the introduction of recombinant DNA into their germ cells
In animals, transgenesis either means transferring DNA into the animal or altering DNA already in the animal.