11.   This reprogramming happens in cloning, when the nucleus of a skin cell is put into an egg that has had its own nucleus removed.

12.   They took one of those embryo cells and merged it with a second cow egg whose own nucleus has been removed.

13.   To do this, the Wisconsin group removed the nucleus from an unfertilized cow egg and merged the egg with the differentiated cell that they wanted to clone.

14.   Under the technology, scientists remove the nucleus from an egg cell, leaving proteins and other nutrients.

15.   Dolly was cloned by fusing a body cell from the ewe to an egg that had its nucleus removed.

16.   Hwang transferred the nuclei from body cells removed from five adult cows into cow eggs from which the nuclei had been removed.

17.   In nuclear transfer, scientists remove the nucleus from an egg and replace it with the nucleus from another cell.

18.   In the study, researchers removed the nucleus from a cow egg and replaced it with a skin cell containing DNA from another cow.

19.   Noto and Kaga were born after researchers took cells from an adult cow and placed them in unfertilized eggs whose own nuclei had been removed.

20.   Scientists would create a clone of a sick patient by removing the nucleus of a donor egg and replacing it with that of a cell from the patient.