Bryan Johnson claimed he had "cloned" himself, but scientists say the experiment involved induced pluripotent stem cells ...

(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 ...

Please enable JavaScript to read this content. After more than 15 years of failures, biologists have finally created human stem cells by the same technique that ...

Stem cells, directed to differentiate into specific cell types, offer the possibility of a renewable source of replacement cells and tissues to treat diseases, including Alzheimer’s diseases. Policy ...

The process remains technically demanding, costly, and limited.

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 ...

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 ...

LINCOLN, Neb. (AP) -- The emotion, tumult and acrimony over human cloning, stem-cell research and abortion were compressed into one small meeting room Thursday in the Capitol. Dozens of people packed ...

An entirely appropriate stew of scientific vexation and mortification has accompanied revelations that the incredible Korean achievements in human embryonic cloning and stem cell research are exactly ...

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 ...