That's basically gone now, thanks to CRISPR.

多亏了CRISPR，我们解决了这个难题。

But CRISPR is not without controversy.

但是CRISPR并非没有争议。

But CRISPR is not without controversy.

但CRISPR并非没有争议。

People fear CRISPR could lead to designer babies.

人们担心CRISPR会导致人们开始设计婴儿。

People fear that CRISPR could lead to designer babies.

人们担心CRISPR可能会引发基因设计婴儿的出现。

We can precisely edit genes with CRISPR.

我们能使用 CRISPR 技术精确编辑基因。

Firms involved in developing CRISPR editing for use in medicines have downplayed concerns.

参与开发药用CRISPR编辑的公司并没有重视这些担忧。

This limits the way the CRISPR editing technology can be used on them.

这限制了CRISPR编辑技术对它们的使用方式。

CRISPR is kind of like having to find, delete, replace function for DNA.

CRISPR有点像DNA的寻找, 删除及替换。

CRISPR's creators adapted the tool from a naturally occurring bacterial defense system.

CRISPR的发明者从一种自然发生的细菌防御系统中改造了这种基因编辑工具。

And these integrated bits of viral DNA get inserted at a site called CRISPR.

而这些成簇的病毒DNA会被插入到 一个名为CRISPR的位点。

In other words, what if CRISPR also copied and pasted itself.

换言之，如果CRISPR 自己也进行复制粘贴会如何。

The first step for CRISPR is to tell it where to go in the genome.

CRISPR 的第一步是告诉它基因组的走向。

Also, even with CRISPR, it's not that easy to engineer a truly devastating trait.

另外，就算有CRISPR，想要制造一个真正 可以引发灭绝的性状也不是简单的事。

Dr Montell and his colleagues hoped that CRISPR might offer an alternative.

蒙特尔博士和他的同事希望CRISPR能够提供另一种选择。

In that vein come two papers describing a way to improve CRISPR.

基于这种思路，两篇论文描述了一种改进CRISPR的方法。

The seconnd technique is a newer gene editing technology called CRISPR-Cas9.

第二种技术是一种被称为 CRISPR-Cas9 的较新的基因编辑技术。

But today, with after a decade of research with CRISPR technology, it's a new game.

但今天，经过十年的 CRISPR 技术研究，这是一个新的领域。

One thing that my lab works on is using CRISPR to engineer immune cells.

我的实验室正在做的一件事是使用 CRISPR 来设计免疫细胞。

Professor He claims to have used CRISPR, a genetic editing tool, to alter the twins' DNA.

何教授说，他用CRISPR基因编辑技术改变了这对双胞胎的DNA。