脱氧核糖核酸 - 维基百科，自由的百科全书
网页脱氧核糖核酸 （英語： deoxyribonucleic acid， 縮寫： DNA）又稱 去氧核醣核酸，是一種 生物大分子，可組成 遺傳 指令，引導 生物 發育 與 生命 機能運作。 主要功能是資訊儲存，可比喻為「藍圖」或「配方」 [1]。 其中包含的指令，是建構 細胞 內其他的化合物，如 蛋白質 與 核醣核酸 所需。 帶有蛋白質編碼的DNA片段稱為 基因。 其他的DNA序列，有些直接以本身構造發揮作用，有些則參與調控遺傳訊息的 表現。 DNA是一種長鏈 聚合物，組 …
DNA - Wikipedia
网页Deoxyribonucleic acid (/ d iː ˈ ɒ k s ɪ ˌ r aɪ b oʊ nj uː ˌ k l iː ɪ k,-ˌ k l eɪ-/ ⓘ; [1] DNA) is a polymer composed of two polynucleotide chains that coil around each other to form a double helix. The polymer carries genetic instructions for the development, functioning, growth and reproduction of all known organisms and many ...
DNA | Definition, Discovery, Function, Bases, Facts, & Structure
网页2 天之前 · DNA, organic chemical of complex molecular structure found in all prokaryotic and eukaryotic cells. It codes genetic information for the transmission of inherited traits. The structure of DNA was described in 1953, leading to further understanding of DNA replication and hereditary control of cellular activities.
脱氧核糖核酸 - 维基百科，自由的百科全书
网页2024年8月13日 · 脱氧核糖核酸 （英语： deoxyribonucleic acid， 缩写： DNA）又称 去氧核糖核酸，是一种 生物大分子，可组成 遗传 指令，引导 生物 发育 与 生命 机能运作。 主要功能是信息储存，可比喻为“蓝图”或“配方” [1]。 其中包含的指令，是建构 细胞 内其他的化合物，如 蛋白质 与 核糖核酸 所需。 带有蛋白质编码的DNA片段称为 基因。 其他的DNA序列，有些直接以本身构造发挥作用，有些则参与调控遗传信息的 表现。 DNA是一种长链 …
脱氧核糖核酸 - 百度百科
网页脱氧核糖核酸（英文DeoxyriboNucleic Acid，缩写为DNA）是生物细胞内含有的四种生物大分子之一核酸的一种。DNA携带有合成RNA和蛋白质所必需的遗传信息，是生物体发育和正常运作必不可少的生物大分子。2023年4月，科学家发现首个有两套DNA的动物——黄疯蚁。
Deoxyribonucleic Acid (DNA) Fact Sheet - National Human …
网页2020年8月24日 · Deoxyribonucleic acid (DNA) is a molecule that contains the biological instructions that make each species unique. DNA, along with the instructions it contains, is passed from adult organisms to their offspring during reproduction. Where is DNA found? In organisms called eukaryotes, DNA is found inside a …
Deoxyribonucleic Acid (DNA) - National Human Genome …
网页3 天之前 · Deoxyribonucleic acid (abbreviated DNA) is the molecule that carries genetic information for the development and functioning of an organism. DNA is made of two linked strands that wind around each other to resemble a twisted ladder — a shape known as a double helix.
The Structure and Function of DNA - Molecular Biology of the …
网页DNA is made of four types of nucleotides, which are linked covalently into a polynucleotide chain (a DNA strand) with a sugar-phosphate backbone from which the bases (A, C, G, and T) extend. A DNA molecule is composed of two (more...)
DNA Is a Structure That Encodes Biological Information
网页In short, DNA is a complex molecule that consists of many components, a portion of which are passed from parent organisms to their offspring during the process of reproduction. Although each...
What is DNA? - MedlinePlus
网页2021年1月19日 · DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).
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