但并不是所有的细胞都具有增殖能力。

Some of the cells have the potential ability of proliferation.

youdao

至第六代，细胞已失去增殖能力。

Up to the sixth passage, the cells lost their proliferation ability.

youdao

至第六代，细胞已失去增殖能力。

Up to the sixth passage, the cells lost their proliferation ability.

youdao