The passage describes the process of somatic cell nuclear transfer (SCNT) used in animal cloning. Complete the passage by writing a suitable word or words in each of the numbered spaces.

Somatic cell nuclear transfer (SCNT) is a technique used to clone mature animals. First, a cell containing a diploid nucleus, known as a (1) \text{__________} cell, is harvested from the animal to be cloned. At the same time, an unfertilised egg cell, or (2) \text{__________}, is harvested from a donor female. The nucleus of this egg cell is removed in a delicate micro-surgical procedure called (3) \text{__________}. The donor nucleus is then inserted into this empty egg, or the two cells are fused together using an (4) \text{__________} shock. To trigger the reconstructed cell to begin dividing, it is artificially activated. The cell undergoes multiple mitotic divisions to form a small ball of cells, which eventually becomes a (5) \text{__________} that is ready for implantation. This embryo is transferred into the uterus of a (6) \text{__________} mother, who carries the pregnancy to term. The resulting offspring is a clone that is genetically (7) \text{__________} to the original donor of the somatic cell, except for its mitochondrial DNA, which is inherited entirely from the (8) \text{__________} donor.