'Flip-flop' switch discovered behind key cellular process

(Phys.org)—For organisms to grow and develop, they must produce tissues with distinct functions, each one made up of similar cells. These different tissues are derived from stem cells. How stem cells divide to create new ...

Live imaging puts new light on stem cell division

(PhysOrg.com) -- A long-held assumption about asymmetrical division of stem cells has cracked. Researchers at the University of Oregon report that the mitotic spindle does not act alone -- that cortical proteins help to position ...