The cloning of dolly involved several steps. First, cells that had previously been taken from dolly's mother were starved for five days, which caused them to stop dividing. After five day, the nuclei of these cells were removed and transferred into an unfertilized sheep egg. In the next step, the egg was grown in the laboratory for a period of time. Then the egg was implanted into the different sheep, where it grew normally. When the sheep finally gave birth,the lamb was an exact genetic copy, or clone, of the sheep that had provided the transferred nucleus, not the sheep that provided the egg.