Helix 大蜗牛 nickase(DNA) 【化】 切口酶 Structure n. 结构,构成;建筑物 vt. 设计,组织 structure n. 1.[U,C]结构;构造;组织 2.[C]构造体;建筑物 v. [T] 1.构造;组织;建造 DNA polymerase 【化】 DNA聚合酶 double a. 1.加倍的;两倍的 2.特大的;特强的 3.双人的 4.成双的;重复...
C。解析:沃森和克里克发现DNA的双螺旋结构主要是基于分析其他科学家的数据以及他们自己的研究。选项A仅他们自己的实验室实验不准确,因为也参考了别人的数据;选项B仅理论计算不全面;选项D纯靠运气是错误的。本题考查对科学发现过程的理解,词汇有“double - helix(双螺旋)”“discovery(发现)”,语法为一般过去时的被动...
网络释义 1. 脱氧核糖核酸双螺旋结构 ... 电子数据交换 EDI N~ 脱氧核糖核酸双螺旋结构 DNA double helix structure~ 人类基因组计划 The Human Genome Projectg…www.foodmate.net|基于22个网页 例句 释义: 全部,脱氧核糖核酸双螺旋结构 更多例句筛选 1. The discovery of DNA double helix structure in 1953 ...
In biology, "double helix" is a term used to describe the structure ofDNA. A DNA double helix consists of two spiral chains of deoxyribonucleic acid. The shape is similar to that of a spiral staircase. DNA is anucleic acidcomposed of nitrogenous bases (adenine, cytosine, guanine, and thymi...
1) DNA double helix structure DNA双螺旋结构 1. To philosophical think for between correlativity of the theory of warp of space time offered by Einstein and biologicalDNA double helix structure. 对爱因斯坦的“弯曲时空”理论与生物体DNA双螺旋结构的相关性进行了哲理性思考控制生命时间程序的生物钟基因编...
James D. Watson (詹姆斯 •D.沃森)《The Double Helix》《双螺旋》解析 目录 James D. Watson (...
exists mainly in the nucleus and mitochondria of each cell in an organism. It consists of two long strands linked together in a structure resembling a ladder twisted into a spiral, called adouble helix.Each rung is made up of two chemical bases, callednucleotides,that are joined together by ...
(or RNA) is, in fact, highlyvariable. Despite this realization, Levene's proposed polynucleotide structure was accurate in many regards. For example, we now know that DNA is in fact composed of a series of nucleotides and that each nucleotide has three components: aphosphate group; either a...
DNA, which has a double-helix structure, can have many genetic mutations and variations. Credit: NIH Researchers from HSE University have used machine learning to discover that the two most widespread DNA structures—stem loops and quadruplexes—cause genome mutations that lead to cancer. The resul...
Figure 3. DNA has (a) a double helix structure and (b) phosphodiester bonds. The (c) major and minor grooves are binding sites for DNA binding proteins during processes such as transcription (the copying of RNA from DNA) and replication....