DNA

NASA Discovers Microbe that Thrives on Toxic Arsenic

NASA has discovered a bacteria that can use arsenic -- which is toxic to most forms of life -- as a building block of its DNA. Scientists say the discovery may broaden our definition of what constitutes life and may revolutionize how we search for life beyond Earth.

Genentech's great deal

Roche will finally buy Genentech (DNA) after months of fighting over a price for the acquisition. According to The Wall Street Journal (subscription...

Your red snapper is probably fake

A pair of high school kids did a DNA-barcode test on New York City sushi and found that one-quarter of the fish they tested was really a cheaper...