Word: stemming
(lookup in dictionary)
(lookup stats)
Dates: during 2000-2009
Sort By: most recent first
(reverse)
...STEM LINE The cells are removed and grown in a Petri dish. As they divided, they create a line of stem cells...
...TISSUE PRODUCTION Using various recipes of nutrients and other factors, scientists hope to turn stem cells into any of the body's more than 200 tissues, such...
...controversy begins at the source--the human embryos that must be destroyed to retrieve stem cells. Scientists can obtain these embryos in four ways, each with its own ethical challenges. The least morally problematic--using embryos left over from fertility treatments--is the only method Bush is considering supporting. Private groups are already attempting the others...
...fertilization, clinics routinely fuse more than one egg with sperm. That way, if implanting a fertilized egg doesn't work the first time, they can try again. This practice has left thousands of unwanted embryos stored in clinic freezers. James Thomson, left, the first scientist to establish a human stem-cell line, used such embryos...
...ABORTED FETUSES John Gearhart, above right, the Johns Hopkins biologist credited, along with Thomson, with first culturing stem cells, extracted his from fetuses donated by women at a nearby abortion clinic...