Well, I was created as part of the development of the method of improving the production of certain pharmaceutical materials. There are all sorts of useful substances around that could help in the fight against particular diseases. By creating me, a sheep who carries extra genes which play a part in the making of these 'protein' and 'peptide' substances, scientists can collect them from my milk and in the future from other sheep and other animal species. Mice ,rabbits and cows have all been used to date. Mice don't produce enough of the materials needed but they're easy and quick to breed.
Rabbits are good where small amounts are needed.
These products can be produced by others methods but they are very expensive. Using us Transgenic animals, the cost goes down, makes treatments affordable and allows experiments and drug trials to be conducted much more quickly. She and the other pioneering animals that come after her will make a difference to the speed of progress to the cure for a range of diseases. I'm more like a vine, where the fruits of my special qualities are plucked off the branches. No, and I'm rather pleased about that - some of those horses used in the production of Premarin used in Hormone Replacement Therapy are badly treated, I hear on the farmyard grapevine.