U.S.officials say the self-described satellite launch would only be a cover for a test of a long-range missile, perhaps a more advanced version of the one North Korea fired eastward over Japan in 1998.
VOA: standard.2009.03.25
Researchers can only use dead cells or pieces of a cell and can onlytestfor one response at a time, such as enzyme activity or the binding of a compound to a receptor.
In order to be useful, Tautigian says, a prostate cancer test would not only have to testfor at least two genes, but both genes would have to predict the likelihood that a patient will develop cancer with similar certainty.