人体的表皮细胞和神经细胞均来源于外胚层细胞,但它们的形态、结

人体的表皮细胞和神经细胞均来源于外胚层细胞,但它们的形态、结构和生理功能却迥然不同。这两种细胞的差异是稳定不变的,它们都不能恢复到原来外胚层细胞的形态和结构,这说明                         (  )

A.细胞分化具有持久性                

B.细胞分化一般是不可逆的

C.细胞分化是基因选择性表达的结果

D.分化的细胞仍具有全能性

 

答案

B

 

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