Latest Sean J. Morrison Stories
- National Poll Reveals Three-Quarters of Americans Want President-Elect Obama to Deliver on Campaign Commitment to Lift Restrictions on Embryonic Stem Cell Research - WASHINGTON, Jan.
Researchers have developed a simple technique to identify hematopoietic, or blood-forming, stem cells based on a set of characteristic markers that the cells display on their surface.
- Having no light.
- Of or relating to the region of a body of water that is not reached by sunlight and in which photosynthesis is unable to occur.