In Chemical Tour De Force, Scientists Announce They’ve Essentially Doubled The Genetic Alphabet

Natural DNA is spelled out with four different letters known as bases — A, C, G and T. Chemist Steven A. Benner and his colleagues have built DNA with eight bases. The new model opens possibilities that the four-base DNA may not be the only chemistry that could support life. Other news looks at DNA being used to track people and genetic testing.

from Kaiser Health News https://ift.tt/2GDzkTr