Ten-second trivia: The thymus, the spleen, and bone marrow are all important parts of what?

、脾脏和骨髓都是人体哪一系统重要组成部分?

The thymus is involved in the development of T cells - making sure that any T cells that react to self-antigens, antigens that are normally found in the body, are promptly destroyed.

与T细胞发育有关，确保任何对自体抗原（正常情况下机体中抗原）起反应T细胞迅速被破坏。

The tissue came from another person's thymus gland and was partly grown in a laboratory.

该组织来自另一个人，某种程度上是实验室中培养出来。

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

RNA 碱基是尿嘧啶（U），而 DNA 碱基是嘧啶（T）。

Adenine will always bind with thymine and cytosine with guanine.

总是与嘧啶结合，胞嘧啶与结合。

Now, T-cell development starts in the thymus from precursors that arise in the bone marrow.

现来看T细胞，它们由从骨髓中产生前体T细胞中发育而来。

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核苷酸由脱氧核糖、磷酸以及四个核碱基之一组成，分别是、胞嘧啶、与嘧啶，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种化学成分——、、胞嘧啶和嘧啶——这4种成分总是以特殊配对方式排列。

This seems to reduce the muscle weakness symptoms even in people that don't appear to have any identifiable problems with the thymus gland itself.

这似乎可以减轻重症肌无力症状，即使那些患者本身没有问题。

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，嘧啶和胞嘧啶是构成脱氧核糖核酸四种碱基中两种。

Usually, our thymus makes sure that the T-cells that attack these self proteins aren't allowed to survive.

一般情况下，我们灭活这些攻击自身蛋白T细胞。

For this, they looked at an organ called the thymus.

为此，他们检查了研究对象。

Another lymphoid organ is the thymus, which is in the upper part of the chest - just below where a necklace might sit.

另一个免疫器官是，它位于上部，刚好低于佩戴项链位置。

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核苷酸由一分子单糖-脱氧核糖、一分子磷酸与四种核碱基之一（A）、胞嘧啶（C）、（G）或嘧啶（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——基因子母表中字母——由前面我们提到、、胞嘧吟和嘧啶4种核苷酸组成。

The thymus gland is an organ that plays an important part in the immune system, which fights infection and disease in the human body.

是人体免疫系统中发挥重要作用器官，它抗击人体所受感染和疾病。

In the thymus, these precursor T-cells mature and express either CD4 on helper T-cells or CD8 on cytotoxic T-cells sometimes known as suppressor T cells.

中，这些前体T细胞成熟后，分化为辅助T细胞细胞表面表达CD4，或分化为细胞毒性T细胞（有时被称为抑制T细胞）细胞表面表达CD8。

It's possible that this is because helper T cells, which originate in the thymus, help B cells make antibodies to the acetylcholine receptor.

这可能是因为起源于T细胞，帮助B细胞产生ACh受体抗体。

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

苷、嘧啶、胞嘧啶和。

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

含氮碱基有四种不同类型：、、胞嘧啶和嘧啶。