Discuss the steps in cloning dolly the sheep

Fertilised ovum from sheep + cell in sheep's mammary gland isolation

Diploid one cell isolated + nucleus from ovum

Nucleus inserted into empty ovum

Ovum implanted in uterus of unrelated sheep

Ovum develops into foetus

Explanation:

In this process a nucleus from a fertilised ovum was removed and replaced with a diploid nucleus of a cell from the mammary glands of another sheep. The ovum was implanted into the sheep's uterus. The resulting foetus "Dolly" born similar to donor sheep.