
鹼基對 - 維基百科,自由的百科全書
鹼基對(base pair)是雙鏈核酸的基本組成單位,由兩個核鹼基通過氫鍵相互結合而成;它們形成了DNA雙螺旋的結構單元,並促成DNA和RNA的摺疊結構。鹼基對也是編碼遺傳信息的化學結構。
Base pair - Wikipedia
The chemical structure of DNA base-pairs . A base pair (bp) is a fundamental unit of double-stranded nucleic acids consisting of two nucleobases bound to each other by hydrogen bonds. They form the building blocks of the DNA double helix and contribute to the folded structure of both DNA and RNA.
碱基对 - 维基百科,自由的百科全书
碱基对(base pair)是双链核酸的基本组成单位,由两个核碱基通过氢键相互结合而成;它们形成了DNA双螺旋的结构单元,并促成DNA和RNA的折叠结构。碱基对也是编码遗传信息的化学结构。
碱基互补配对,可不止AT和CG那么简单 - 知乎 - 知乎专栏
AT、CG互补配对,确实是DNA双链结构中最常见的现象,是由James Watson和Francis Crick在前人的研究基础上确定的。 因此,我们后人也将这种碱基互补配对的方式,称为 Watson-Crick pairing (Watson-Crick配对)。 但就在James Watson和Francis Crick阐明DNA双螺旋结构的十年之后,一名在荷兰出生的美国生化学家Karst Hoogsteen发现了一种全新的DNA晶体结构。 其中,AT和CG碱基互补配对的方式,和Watson-Crick pairing的是不同的。 我们先来看下面这个 …
5.4: Base Pairing in DNA and RNA - Biology LibreTexts
2025年3月17日 · The rules of base pairing explain the phenomenon that whatever the amount of adenine (A) in the DNA of an organism, the amount of thymine (T) is the same (called Chargaff's rule). Similarly, whatever the amount of guanine (G), the amount of cytosine (C) is the same.
碱基对 - 百度百科
碱基对,是一对相互匹配的碱基(即A—T, G—C,A—U相互作用)被氢键连接起来。 它常被用来衡量DNA和RNA的长度(尽管RNA是单链)。 它还与核苷酸互换使用,尽管后者是由一个五碳糖、磷酸和一个碱基组成。
碱基互补配对原则 - 百度百科
碱基互补配对是指核酸分子中各核苷酸残基的碱基按A与T、A与U和G与C的对应关系互相以氢键相连的现象。 它是沃森和克里克首先在DNA双螺旋结构模型中提出来的,后来发现,不仅在DNA复制中有这种规律,在转录过程DNA和RNA关系中也有类似的规律。 甚至单链RNA中凡在空间靠近、可以氢键互相结合的碱基,也能这样配对。 所以,这个原则具有极其重要的生物学意义。 复制、转录、逆转录和转译等遗传信息传递的基本生物过程都遵循这个原则。 [1] 在脱氧核糖核酸 …
2018年9月24日 · Adenine and thymine form two complementary hydrogen bonds to form the A:T base pair (A), whereas guanine and cytosine form three complementary hydrogen bonds to form the G:C base pair (B). Both the A:T and G:C base pairs have the same width, as shown in orange.
Base Pair - National Human Genome Research Institute
3 天之前 · A base pair consists of two complementary DNA nucleotide bases that pair together to form a “rung of the DNA ladder.” DNA is made of two linked strands that wind around each other to resemble a twisted ladder — a shape known as a double helix. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups.
DNA Base Pairs — Overview & Structure - expii
Base Pairs. The genetic code, or DNA sequence, is usually represented as a string of letters. There are only four available letters: A, T, C, and G. Each of these letters represents a base or a single rung along the genetic ladder. From just a small number of base pairs, we can make an endless number of proteins. How can we do that?