The other stem-cell debate: to test the potential curative powers of human embryonic stem cells, biologists want to inject them into lab animals. Creating such chimeras makes perfect sense, to a point: a sheep with a human liver? O.K. A mouse brain made up of human cells? Maybe. But a chimp that sobs?
Shreeve
Jamie
J
D032761:Animal Experimentation / Q000941:ethics; D000818:Animals; D001921:Brain / Q000502:physiology; D002678:Chimera; D033041:Embryo Research / Q000941:ethics / Q000331:legislation & jurisprudence; D004622:Embryo, Mammalian / Q000166:cytology; D033042:Fetal Research / Q000941:ethics; D016332:Fetal Tissue Transplantation / Q000941:ethics; D036281:Genetic Research / Q000941:ethics / Q000331:legislation & jurisprudence; D040821:Human Characteristics; D006801:Humans; D051379:Mice; D008822:Mice, Transgenic; D011323:Primates; D013045:Species Specificity; D033581:Stem Cell Transplantation / Q000941:ethics* / Q000331:legislation & jurisprudence; D013234:Stem Cells; D014481:United States