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

RNA 的碱基尿啶（U），而 DNA 的碱基胸腺啶（T）。

Adenine will always bind with thymine and cytosine with guanine.

腺嘌胸腺啶结合，啶鸟嘌结合。

This attaches methyl groups (a carbon atom and three hydrogens) to either adenine or cytosine, two of the four chemical bases that form the alphabet of DNA, depending on the gene involved.

该作用可以让甲基（由一个碳原子和三个氢原子组成）附着于腺嘌或啶上——组成DNA序列的四主化学成分中的两，到底附着的哪取决于涉及到的基因类。

Nucleotides of DNA are made out of a sugar deoxyribose, a phosphate, and one of the four nuclear bases: adenine, cytosine, guanine, and thymine or A, C, G, T for short.

DNA的核苷酸由脱氧核糖、磷酸以及四个核碱基之一组成，分别腺嘌、啶、鸟嘌胸腺啶，或简称A、C、G、T。

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化学成分——腺嘌、鸟嘌、啶和胸腺啶——这4成分以特殊的配对方式排列。

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，叶酸对制造红细很重要，胸腺啶和啶构成脱氧核糖核酸的四碱基中的两。

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，让我们先来了解嘌和啶，它们都自然界中最常见的含氮杂环。

Nucleotides of DNA are made up of a sugar - deoxyribose, a phosphate, and one of the four nucleobases - adenine, cytosine, guanine, and thymine - or A, C, G, T for short.

DNA的核苷酸由一分子单糖-脱氧核糖、一分子磷酸四核碱基之一的腺嘌（A）、啶（C）、鸟嘌（G）或胸腺啶（T）组成。

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、鸟嘌、吟和胸腺啶4核苷酸组成。

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

腺苷、胸腺啶、啶和鸟嘌。

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

含氮碱基有四不同的类型：腺嘌、鸟嘌、啶和胸腺啶。

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

鸟嘌啶配对，腺嘌胸腺啶配对。

And in the States, Oregon has opened up the possibility of cytosine therapy for wellness, not for illness, but for wellness across the whole state and as has Colorado now.

在美国，俄勒冈州已开始探索啶疗法用于健康保健，而非治疗疾病，而面向全州范围的健康促进；科罗拉多州如今也已如此。

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

看，DNA 由四称为“碱基”的不同构件组成：腺嘌、啶、鸟嘌和胸腺啶。

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

准备大量冲洗和磺胺啶银。

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

嘌位置 1 到啶位置 1，嘌位置 6 到啶位置 6。

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，我们有的碱基啶、鸟嘌、腺嘌和胸腺啶。

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

这些核糖核酸（RNA）或脱氧核糖核酸（DNA）的字母。在RNA中，它们分别啶、鸟嘌、腺嘌和尿啶。

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

所以你有啶、鸟嘌、腺嘌和尿啶。

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，含有啶、鸟嘌、腺嘌和胸腺啶。这里的一个不同之处在于DNA，我们实际上拥有的双螺旋结构，因此这些碱基对会相互配对连接。