细胞分化是生物体普遍存在的一种生命现象,下列叙述不正确的是 A

细胞分化是生物体普遍存在的一种生命现象,下列叙述不正确的是

A.分化发生在生物体的整个生命进程中

B.分化是基因在特定的时间和空间条件下选择性表达的结果

C.未离体的体细胞不会表现出全能性

D.分化过程中遗传物质发生了改变

答案

D

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