新しん生せい突とつ然ぜん変へん異い

noun

de novo mutation

A genetic term for a mutation that appears for the first time in a family, not inherited from either parent.

• この病びょう気きは新しん生せい突とつ然ぜん変へん異いによって起おこることがある。

  This disease can be caused by a de novo mutation.