Many kinds of somatic mutations have no obvious effect on an organism, because genetically normal body cells are able to compensate for the mutated cells. Nonetheless, certain other mutations can ...

This was the first time a mutated gene has been restored to normal. The small study of nine patients announced Monday by the company Beam Therapeutics of Cambridge, Mass., involved fixing a ...

The screening process may include visual observations of the organisms' appearances, behavioral tests, and physiological examinations. Once an abnormal phenotype is detected, the mutated gene can ...