Starting with 2 main mechanisms (DNA methylation and histone acetylation) of the apparent reprogramming, the abnormalities of the apparent reprogramming in the somatic cloning animals were summarized.

• 摘要从表观重编程的两大主要机制（DNA甲基化和组蛋白乙酰化）入手，对体细胞克隆动物的表观重编程异常展开了综述。