| A half-embryo or a whole dwarf may arise according to the artificial position of the blastomere. |
| Each blastomere inherits a certain region of the original egg cytoplasm, which may contain one or more regulatory substances called cytoplasmic determinants. |
| Another issue raised is that the blastomere and resulting stem cells would not genetically match the patient receiving the cell transplant. |
| The technique involves removal of a single cell from an early, eight-cell embryo called a blastomere. |
| For instance, in domestic animals similar experiments were a success as early as 1986, when Willadsen produced the first mammal, a lamb from an oocyte which had received the d iploid nucleus of a blastomere. |
| Dr. Lanza found that one such cell, or blastomere, could generate embryonic stem cells. |
