The creation of embryos specifically for research purposes.
Nuclear Transfer Techniques
Methods of implanting a CELL NUCLEUS from a donor cell into an enucleated acceptor cell.
Embryo, Mammalian
The entity of a developing mammal (MAMMALS), generally from the cleavage of a ZYGOTE to the end of embryonic differentiation of basic structures. For the human embryo, this represents the first two months of intrauterine development preceding the stages of the FETUS.
Cloning, Organism
The formation of one or more genetically identical organisms derived by vegetative reproduction from a single cell. The source nuclear material can be embryo-derived, fetus-derived, or taken from an adult somatic cell.