If there is one thing that people on both sides of the cloning debate agree upon, it’s that cloning is an incredibly inefficient process. When it comes to cloning animals, like Dolly and Snuppy, the ...

(CNN) -- A human embryo, containing about a couple hundred cells, is smaller than the period at the end of a sentence. Scientists need strong microscopes to see these precursors to life, and to take ...

Reproductive Cloning is the process of making a full living copy of an organism. Reproductive cloning of animals transplants nuclei from body cells into eggs that have had their nucleus removed. That ...

Add this to the pot of stem cell sources creating a political stir: parthenogenesis, creating embryos from unfertilized eggs. Unlike the cloning issue, which has a defined division, the ethical ...

Pluripotent stem cells are known for the need to grow as colonies in order to prevent differentiation. This adds complexity to the isolation/expansion of clonal populations following research ...

WASHINGTON (Reuters) - New stem cell guidelines released on Friday by the U.S. National Institutes of Health would limit federal funding of the research to embryos left over at fertility clinics and ...

VATICAN CITY (Reuters) - A Vatican bioethics document Friday condemned artificial fertilization and other techniques used by many couples and also said human cloning, "designer babies" and embryonic ...

This Article explains how a revolutionary biomedical technology became entangled in the cloning wars and why Congress should not permit it to become a casualty. Part I of the Article explains the ...