Animal biotech

Dolly the sheep

Animal cloning

Animal cloning has been improving for twenty years it has been an important tool for scientific researchers since the 1950's. The 19997 debut of Dolly the cloned sheep was a worldwide media event, animal cloning was not new. Dolly was a scientific breakthrough not because she was a clone, but because the source of the genetic material used to produce dolly was an adult cell, not an embryonic one.

Harvard mouse

The PTO found that organisms were in fact

new and eligible for patenting. It found this particular

type of oyster to be obvious, and thus did not allow a

patent for it. The polyploid oyster paved the way

for the patenting of other nonnaturally occurring animals. In

1988, Philip Leder and Timothy Stewart were granted a patent

on transgenic nonhuman mammals

that covered the so-called Harvard mouse, which was genetically

engineered to be a model for the study of cancer.