Animal Viruses

Animal Viruses - A number of animal viruses are also used as vectors, either for the delivery of nucleic acid into cultured cells followed by its integration with host genome or for the amplification and high level expression of foreign gene, using the promoters from virus genes.

These cloned genes can have a variety of uses including gene therapy in mammalian cells and synthesis of important proteins by cloned genes in cell cultures. Some of these viruses will be discussed later in this, because they are used as expression vectors