A eukaryote is any cell or organism that possesses a clearly defined nucleus. Eukaryotic cells form the foundation of complex, multicellular life, including apple trees, mushrooms, fish and humans.

Pop quiz: Stem cells can be used to 1. fight cancer, 2. grow a new kidney, 3. erase wrinkles, or 4. repad creaky knees. Can’t settle on one answer? Not surprising—the mini powerhouses have grabbed ...

Stem cell research is at defining moment. Although it can be controversial and does raise a lot of important ethical issues, this area of medical science has been characterised by a number of ...