contribute. Totipotent stem cells are cells that can give rise to a fully functional organism as well as to every cell type of the body. Pluripotent stem cells are capable of giving rise to virtually any tissue type, but not to a

Human Embryonic Germ Cells Embryonic germ cells are derived from primordial germline cells in early fetal tissue during a narrow window of development. Unlike embryonic stem cells , animal experiments on embryonic germ cells have been

Production of Embryonic Stem Cells from Differentiated Somatic Cells José Cibelli . Vice President of Research, Advanced Cell Technology Transgenic ES-like cells were injected into preimplantation embryos

Totipotent Stem Cells Stem cells which are capable of forming every type of body cell. Each totipotent cell could replicate and differentiate and become a human being. All cells within the early embryo are totipotent up until the

alternative sources of such cells, adult stem cells cannot entirely replace either EG and ES cells because much basic research needs to be done in the area of early human embryonic development for which EG and ES cells are required. The zone of

hES: Human Embryonic Stem Cells Pluripotent stem cells that differentiate into various tissues in the body. Related Topics: Genetics Search for hES: Human Embryonic Stem Cells

and Characteristics of Human Stem Cells Please choose a sub-section. Topic Index More: Human Embryonic Stem Cells Email link | Printer-friendly | Feedback | Contributed by: AAAS DoSER and

funding for pluripotent stem cell research but deny it for deriving these stem cells from embryos. "DHHS funds may not be used for the derivation of human pluripotent stem cells from early human embryos." What, then, should be

out the individual cells, and placed them on a feeder tray. The cells divided. They reproduced themselves. Because these cells are as yet undifferentiated--that is, they are pluripotent and able to make any part of a human body--they are

to the discovery of human stem cells (precursor cells that can give rise to multiple tissue types), including embryonic stem (ES) cells, embryonic germ (EG) cells, and adult stem cells. Recently, techniques have been developed for the in vitro