As a result, geneticists say Dolly could age faster and mn a higher-than-usual risk of cancer, which occurs when cells fail to self- destruct and begin unconfrolled gtowth.

• 因此，基因学家说多莉可能衰老得快，患癌症的风险较大，当细胞无法自毁，开始无控制地生长时，这种情况便会发生。