Polly the sheep

Polly the sheep was the first clonic sheep and transgénic at the same time, THe birdth of that sheep was made in the Roslin instituto de Edimburgo, five months after the birdth of the dolly sheep and by the same equipment of Ian Wilmut.

In this case the process was made putting a humen gen of terepeutic value in fetal cells of sheep, later aply the habitual procedure rezlized for dolly the sheep