Somatic Cell Nuclear Transfer (SCNT)
Somatic Cell Nuclear Transfer (SCNT) is a technique in which the nucleus of a somatic (body) cell is transferred to the cytoplasm of an enucleated egg (an egg that has had its own nucleus removed).
- Once inside the egg, the somatic nucleus is reprogrammed by egg cytoplasmic factors to become a zygote (fertilized egg) nucleus.
- The egg is allowed to develop to the blastocyst stage, at which point a culture of embryonic stem cells (ESCs) can be created from the inner cell mass of the blastocyst.
- Mouse, monkey, and human ESCs have been made using SCNT; human ESCs ....
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