recurrent mutation

例句：

1. 1. The patient's condition has shown signs of a recurrent mutation.
   患者的病情出现了复发突变的迹象。
2. 2. Researchers are studying the genetic basis of this recurrent mutation.
   研究人员正在研究这种复发突变的遗传基础。
3. 3. This mutation is known to cause cancer in humans, but it is not yet clear how it recursin different populations.
   这种突变已知会导致人类癌症，但目前尚不清楚它在不同人群中是如何反复出现的。