RNA has a base, uracil, or U, whereas DNA has the base thymine or T.

RNA 的碱基是尿嘧啶（U），而 DNA 的碱基是胸腺嘧啶（T）。

Adenine will always bind with thymine and cytosine with guanine.

腺嘌呤总是与胸腺嘧啶结合，胞嘧啶与鸟嘌呤结合。

The Nitrogenous bases are of four different types: Adenine, Guanine, Cytosine and Thymine.

含氮碱基有四种不同的类型：腺嘌呤、鸟嘌呤、胞嘧啶和胸腺嘧啶。

There are four bases: adenosine, thymine, cytosin, and guanine.

腺苷、胸腺嘧啶、胞嘧啶和鸟嘌呤。

Silver sulfadiazine is still used to dress burns.

磺胺嘧啶银仍用于包扎烧伤。

Guanine always pairs with cytosine and adenine always pairs with thymine.

鸟嘌呤总是与胞嘧啶配对，腺嘌呤总是与胸腺嘧啶配对。

Set me up for a high volume irrigation and grab me some silvadene.

量冲洗和磺胺嘧啶银。

Purine position 1 to pyrimidine position 1, purine position 6 to pyrimidine position 6.

嘌呤位置 1 到嘧啶位置 1，嘌呤位置 6 到嘧啶位置 6。

To understand where the uric acid comes from, let's start with purines, which, together with pyrimidines, are nature's most common nitrogen-containing heterocycles.

为了说明尿酸从何而来，让我们先来了解嘌呤和嘧啶，它们都是自然界中最常见的含氮杂环。

These are the letters of RNA or the letters of DNA. Cytosine, guanine, adenine and uracil in RNA.

这些是核糖核酸（RNA）或脱氧核糖核酸（DNA）的字母。在RNA中，它们分别是胞嘧啶、鸟嘌呤、腺嘌呤和尿嘧啶。

And so in RNA, it's adenine, guanine, uracil and cytosine.

在核糖核酸中，它们是腺嘌呤、鸟嘌呤、尿嘧啶和胞嘧啶。

Specifically, folic acid is important for making red blood cells, and thymine and cytosine, two of the four bases that make up DNA.

具体来说，叶酸对制造红细胞很重要，胸腺嘧啶和胞嘧啶是构成脱氧核糖核酸的四种碱基中的两种。

See, DNA is made up of four different building blocks called " bases" : adenine, cytosine, guanine, and thymine.

看，DNA 由四种称为“碱基”的不同构件组成：腺嘌呤、胞嘧啶、鸟嘌呤和胸腺嘧啶。

So you've got cytosine, guanine, adenine and uracil.

所以你有胞嘧啶、鸟嘌呤、腺嘌呤和尿嘧啶。

If you look at DNA the bases that we have are cytosine, guanine, adenine and thymine.

如果你看脱氧核糖核酸，我们有的碱基是胞嘧啶、鸟嘌呤、腺嘌呤和胸腺嘧啶。

In RNA it's going to be a uracil.

在核糖核酸中，它将会是尿嘧啶。

In DNA it's going to be thymine.

在DNA中，它（与腺嘌呤配对的碱基）将是胸腺嘧啶。

It was known that DNA had four chemical components - called adenine, guanine, cytosine, and thiamine - and that these paired up in particular ways.

当时已经知道，DNA含有4种化成分——腺嘌呤、鸟嘌呤、胞嘧啶和胸腺嘧啶——这4种成分总是以特殊的配对方式排列。

The bases - the letters of the genetic alphabet - consist of the four nucleotides mentioned a page or two back: adenine, thiamine, guanine, and cytosine.

碱基——基因子母表中的字母——由前面我们提到的腺嘌呤、鸟嘌呤、胞嘧吟和胸腺嘧啶4种核苷酸组成。

Cytosine, guanine, adenine and thymine in DNA. The other difference here is in DNA. We actually have a double helix so those attach together.

在脱氧核糖核酸（DNA）中，含有胞嘧啶、鸟嘌呤、腺嘌呤和胸腺嘧啶。这里的一个不同之处在于DNA，我们实际上拥有的是双螺旋结构，因此这些碱基对会相互配对连接。