In 2014, scientists made a huge news splash when they reported the ability to grow bacteria with an expanded genetic code. Critics feared the rise of unnatural creatures; others appreciated the therapeutic potential of the development. Now, researchers have found that the expanded code might have an unforeseen limitation. A study reports that these novel components can damage cells when they are exposed to light.
from Geochemistry News -- ScienceDaily http://ift.tt/2cPl4Je