All cells contain two sets of chromosomes.

所有的细胞都含有两套染色体。

Now DNA is in all the cells of all living things, including ourselves.

现在 DNA 存在于包括我们自己在内的所有生物的所有细胞中。

And that's because alcohols chemically attack molecules that are fundamental to all cells.

这是因为酒精是通过化学方式攻击对所有细胞都很重要的分子。

Aerobic respiration happens all the time in all cells, usually in the mitochondria.

有氧呼吸每时每刻都在细胞中发生，通常在线粒体中。

As Doctor Strange began the spell, a golden light appeared in all the cells.

奇异博士开始施咒，所有牢笼内都出现一道金光。

Before that, it's all cells and parts, you know, but then they actually start dreaming.

在此之前都是细胞和其他的东西，然后他们竟然开始做梦了。

One research approach involves using a drug to activate all cells harboring the HIV genetic information.

一项研究涉及使用一种药物激活隐含HIV遗传信息的所有细胞。

That means there's more fluid for all those blood cells to bounce around in (wooo parrttayy).

这意味着所有血细胞周围有了更多水分。

Today's test will be the seventh such nationwide drill, but only the second time it includes all cell devices.

今天的测试将是第七次全国演习，但包括所有手机设备的演习这可仅是第二次。

However, " sometimes the second twin may show the mutation in some cells, but not all cells, " he added.

然而，他补充说，" 有时双胞胎中的另一个可能会在某些细胞中出现突变，而是不是所有细胞都突变。"

Essentially, these medicines cause some level of harm to all cells in the body — even healthy ones.

本质上，这些药物会对体内所有细胞造成一定程度的伤害——甚至健康的细胞也会受到损害。

Your body is made up of billions and trillions of cells and almost all cells have DNA in their nucleus.

你的身体是由数以亿计的细胞组成的，几乎所有细胞的细胞核中都有 DNA。

Up until this point, all cells were prokaryotes: simple bags of stuff without any division of labor going on inside.

在这之前，所有的细胞都是原核生物：里面只有物质，没有任何分工。

One of the most formidable challenges is how to supply oxygen and nutrients to all the cells in a full-size organ.

其中一项最艰巨的挑战，是如何为一个原尺寸的器官里所有的细胞供给氧气和营养。

And how do all the cells start to contract in synchrony?

所有细胞如何开始同步收缩？

NAD is present in all our cells from birth until death.

NAD 存在于我们从出生到死亡的所有细胞中。

And like all cells, they communicate with themselves and their environment around them.

和所有细胞一样，它们与自身以及周围的环境进行交流。

In most cases, simply avoiding hazardous sounds gives hair cells all they need to recover.

在大多数情况下，只要避免危险的声音就可以为毛细胞提供恢复所需的一切。

And in some cases, the dosage required is so high that it kills all cells in the bone marrow, including stem cells.

有一些情况下，化疗需要的药量很大会杀死骨髓里全部的细胞，包括干细胞。

This is called an embolism and it cuts off the oxygen supply to all the cells downstream.

这称为栓塞，它切断了下游所有细胞的氧气供应。