Why three different sheeps used for dolly cloning?

Three different sheep were used in the cloning of Dolly to demonstrate the process of somatic cell nuclear transfer (SCNT) and to ensure genetic diversity. The egg donor, the somatic cell donor, and the surrogate mother were all different individuals, which helped researchers understand the implications of using cells from one organism to create a clone. This approach also minimized the risk of genetic anomalies and allowed for the study of cloning's effects on health and development. Using multiple sheep underscored the complexity of cloning and its ethical considerations.