关于”dna“的英语作文范文5篇，作文题目：dna。以下是关于dna的考研英语范文，每篇作文均为真题范文带翻译。

高分英语作文1：dna

As for the text I learned, I thought a lot after learning about cloning technology. Therefore, I wrote down the idea diary in my mind: DNA if my mother has a smiling mouth, then I will have the same children. If my father has a pair of big eyes, if my mother is very short, I will have one too.

I may also be short, my parents have them Black hair, so my hair will also be black. I really want to clone myself. I don't have to go to school instead of that.

I can play all the time. Cloning "I" will replace medna to study.

中文翻译：

关于我所学的课文，在学习了关于克隆技术的课文后，我想了很多，因此，我写下了我脑海中的想法日记：DNA如果我的母亲有一张微笑的嘴，那么我也会有同样的孩子如果我父亲有一双大大的眼睛，如果我的母亲很矮，我也会有一张，我可能也会很矮，我父母都有黑发，所以我的头发也会是黑色的我非常想克隆自己，我不必去学校而不是那样，我可以一直玩，克隆“我”会代替梅德娜去学习。

万能作文模板2：脱氧核糖核酸

DNA exists in all cellular organisms and viruses, it contains the genetic information of the organism. DNA is the abbreviation of deoxyribonucleic acid, which is composed of two anti parallel chains (double helix), composed of sugar, a phospholipid unit and different bases. The two chains are connected by hydrogen bonds between base pairs.

Although the main chain of phosphate sugar is outside, the main chain of phosphoric acid remains unchanged in one chain, while the bases of adenine, thymine, guanine and cytosine may be different, but the sequence of bases in the double chain determines the inheritance code, which means that the sequence and distribution of bases determine all heritability of an organism This is a very accurate code, even if a letter in the DNA code is wrong, it can lead to disastrous consequences. A unit (nucleotide sequence) responsible for the double helix of a trait is called a gene.

中文翻译：

DNA存在于所有的细胞有机体和病毒中，它包含有机体的遗传信息，DNA是脱氧核糖核酸的缩写，由两条反平行链（双螺旋）组成，由糖、一个磷脂单元和不同的碱基组成。两条链通过碱基对之间的氢键连接在一起，虽然磷酸糖的主链在外面，但磷酸的主链在一条链内保持不变，而腺嘌呤、胸腺嘧啶、鸟嘌呤和胞嘧啶的碱基可能不同，但双链中碱基的顺序决定了遗传密码，这意味着碱基的顺序和分布决定了一个有机体的所有可遗传性状，这是一个非常精确的密码，即使是DNA密码中的一个字母出现错误，也会导致灾难性后果。负责某一性状的双螺旋链的一个单位（核苷酸序列）被称为基因。

满分英语范文3：dna

What is deoxyribonucleic acid, or deoxyribonucleic acid, is the genetic material of human beings and almost all other organisms. Almost every cell in the human body has the same DNA. Most of the DNA is located in the nucleus (called nuclear DNA there, but a small amount of DNA can also be found in mitochondria) (where it is called mitochondrial DNA or mtDNA DNA DNA) The information in DNA is stored in encoded form and consists of four chemical bases: adenine (a guanine (g-cytosine (C and thymine)) (t-human DNA consists of about a billion bases, and these bases are the same in all people the order or sequence of these bases determines the information needed to build and maintain an organism, similar to the letters in the alphabet In a certain order to form words and sentences, DNA bases pair with each other, a and T, C and G, forming units called base pairs.

Each base is also linked to sugar and phosphate molecules. Base, sugar and phosphate are called nucleotides. Nucleotides are arranged in two long chains to form a spiral structure called double helix.

The double helix structure is a bit like a ladder. Base pairs form a ladder like rung. Sugar and phosphate molecules form a vertical side block of ladderan.

The important feature of DNA is that it can be copied, Or copy each strand of DNA in its own double helix, which is crucial for cell division, because each new cell needs an exact copy of the DNA from the old cell. DNA is a double helix, formed by base pairs attached to the sugar phosphate backbone.

中文翻译：

什么是脱氧核糖核酸或脱氧核糖核酸，是人类和几乎所有其他有机体的遗传物质几乎人体内的每一个细胞都有相同的DNA大多数DNA位于细胞核内（在那里称为核DNA，但也可以在线粒体中发现少量的DNA）（在那里它被称为线粒体DNA或mtDNA DNA DNA中的信息以编码形式存储由四种化学碱基组成：腺嘌呤（一种鸟嘌呤（G-胞嘧啶（C和胸腺嘧啶）（T-人类DNA由大约十亿个碱基组成，并且这些碱基在所有人身上都是相同的——这些碱基的顺序或序列决定了构建和维持一个有机体所需的信息，类似于字母表中字母以一定的顺序出现以形成单词和句子的方式DNA碱基相互配对，a与T，C与G，形成称为碱基对的单位。每个碱基还与糖分子和磷酸盐分子连在一起，碱基，糖，磷酸盐被称为核苷酸核苷酸核苷酸排列在两条长链中形成一个螺旋状结构称为双螺旋双螺旋结构有点像梯子，碱基对形成阶梯状的横档，糖和磷酸盐分子形成ladderAn的垂直侧块，DNA的重要特性是它可以复制，或者复制自身双螺旋中的每一条DNA链都可以作为复制碱基序列的模式这在细胞分裂时至关重要，因为每个新细胞都需要有旧细胞中DNA的精确拷贝DNA是一个双螺旋，由碱基对连接到糖磷酸盐主链上形成。

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