Cloning of human preimplantation embryos by separating blastomeres or dividing blastocysts, followed by transfer. |
A single blastomere is removed from each 8-cell human embryo for the purposes of preimplantation genetic diagnosis. |
If, in a woman less than 36, there is evidence of recurrent euploidy, that's not an indication for preimplantation genetic diagnosis. |
Currently the preimplantation selection of embryos is restricted to cases of serious diseases, but the authors urged caution in the future extension of this application. |