So it was thanks to their plentiful telomerase that our pond scum critters never got old.

， 是由于它们丰富的粒酶，我们的池塘浮渣生物才不会变老。

But when we analyze the cells chemically we find something very interesting, a chemical in them, an enzyme called telomerase.

但是当我们对细胞进行化学分析时， 我们发现了一些非常有趣的东西，它们中的一种化学物质， 一种粒酶的酶。

But when we analyze these cells chemically, we find something very interesting, a chemical in them, an enzyme called telomerase.

但是当我们用化学方法分析这些细胞时，我们发现了一种非常有趣的化学物质，一种粒酶的酶。

And when we removed our pond scum's telomerase, their telomeres ran down and they died.

当我们去除池塘浮渣的粒酶时，它们的粒就会流失并死亡。

Someday we may be able to take any cell and keep it alive functioning and reproducing itself essentially forever through the use of telomerase.

有一天，我们也许能够利用粒酶让任何细胞保持活力， 并使其永远自我繁殖。

As bits of the telomere break off from the end of the Chromosome, this chemical, this telomerase can rebuild it, can help reassemble the protective DNA, the telomere that the Chromosome has lost.

当染色体末的粒脱落时，这种化学物质， 这种粒酶可以重建它，帮助重新组装保护性 DNA，即染色体丢失的粒。

And in the future we may have virtually immortal nerve cells and immortal skin cells or whatever, because this chemical, telomerase, can keep the telomeres on the ends of Chromosomes from getting any shorter.

将来，我们可能会拥有几乎永生的神经细胞和永生的皮肤细胞或其他细胞，为这种化学物质，粒酶，可以防止染色体末的粒变短。

And in the future we may have virtually immortal nerve cells and immortal skin cells of whatever because of these chemical, telomerase can keep the telomere on the ends of Chromosomes from getting any shorter.

并且在未来，由于这些化学物质，粒酶可以防止染色体末的粒变短，我们可能拥有几乎不朽的神经细胞和不朽的皮肤细胞。