DNA的英文简介

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解决时间 2021-04-04 10:43

提问者网友：留有余香
2021-04-04 02:43

DNA的英文简介

最佳答案

五星知识达人网友：不如潦草
2021-04-04 04:21

DNA is present in all cellular organisms and in viruses. It contains the genetic information of the organism. DNA, the abbreviation for Deoxyribonucleic Acid, consists of two antiparallel chains (double helix) consisting of sugar, a phosphate-unit and 4 different bases. The two chains are held together by hydrogen bonds between base pairs, while the sugar-phosphate backbone is on the outside. The sugar-phosphate backbone stays the same within a strand, whereas the bases can differ between Adenine, Thymine, Guanine and Cytosine. The order of the bases in the double-chain determines the genetic code, that means the order and the distribution of the bases is responsible for all heritable traits of an organism. It is a very precise code, and a mistake in even a single letter of the DNA code can have disastrous consequences.

A unit (sequence of nucleotides) of the double-helical chain, responsible for a certain trait, is called a gene.参考资料：http://www.foodmate.net/english/kpwx/67982.html

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1楼网友：白昼之月
2021-04-04 05:32

你可以登录生物信息网，不过没有中文解释，但是有的时候一些新出来的东西，也没办法清楚地解释和准确的翻译，所以，英语要学好。记住网址：
www.ncbi.nih.gov

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