Two teams of scientists have applied to create hybrid embryos in the uk, but it is not yet clear whether the human fertilisation and embryology authority has jurisdiction to do so
Stem cell research lacks sufficient eggs to clone embryos. Research is restricted by the ban in many countries on the use of human embryos for therapeutic cloning and on the use of dead embryos for research purposes. As a rule, the oocytes come from women who undergo artificial insemination. In great britain this summer, a clinic was allowed to use the eggs of women for therapeutic cloning, which can reduce their costs for artificial insemination (embryos for research).
Once again, two british research teams from the north east england stem cell institute at the university of newcastle and king’s college london have applied to the human fertilisation and embryology authority to use oocytes from cows, goats or rabbits to produce human stem cells. This involves denucleating the animal oocytes and then introducing a human cell nucleus.