Word: cloninger
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In their desire to keep the embryo inviolable, opponents are missing the main moral issue. The real problem with research that manipulates early embryonic cells--whether derived from fetal tissue or from adult cells rejuvenated through cloning--is not the cells' origin but their destiny. What really ought to give...
Before they could try transferring a gene, the scientists had to master the technique of in vitro (that is, test-tube) fertilization, which isn't typically used with monkeys. Though the technique wasn't required to create ANDi, the Oregon team had already learned to clone the animals, which in...
Gamma secretase emerged as an attractive target shortly after 1995, when scientists working with DNA donated by families prone to early-onset Alzheimer's disease finally succeeded in cloning two genes known as presenilin 1 and presenilin 2. In a series of experiments, researchers established that these genes exercised tight...
As ACT scientists await the clone's birth, other wildlife researchers express doubts about the project's conservation claims and think the wrong message is being sent. "We do not believe that cloning has any relevance to the routine management and conservation of endangered species," says David Wildt, a senior...
To William Holt, a research fellow at the Institute of Zoology in London, the best approach is to learn more about species' reproductive systems and the social conditions that can make animals want to breed naturally. "If you know those things, you can improve success rates a lot without doing...