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...
DNA双螺旋结构模型(DNA double helix)1953年,沃森和克里克发现了DNA双螺旋的结构,开启了分子生物学时代,使遗传的研究深入到分子层次,“生命之谜”被打开,人们清楚地了解遗传信息的构成和传递的途径。在以后的近50年里,分 - 神奇的符号于20240228发布在抖音,已经收
On the other hand, the AATT segments in oligonucleotide double helices tend to be propeller twisted, and the AT domains conform to a structure similar to that of Levitt and Dickerson models. These studies indicate that under solution conditions the DNA double helix, depending upon sequence, can...
细胞DNA的“双螺旋”(double helix)构造,使DNA准确复制,并维持稳固结构以保护免受化学和物理性伤害,才能正确完整保存遗传资讯。但最近康奈尔大学科学家开发出能折叠成复杂结构的DNA,和特 °康奈尔大学:DNA不只双股螺旋结构,还能“折”... 十轮网 康奈尔大学:DNA不只双股螺旋结构,还能“折”出...
The double helix structure of DNA was found by ( ). A.Franklin B.Watson C.Crick D.Hawley 点击查看答案&解析手机看题 你可能感兴趣的试题 单项选择题 对丸剂包衣目的陈述错误的是 A.增加药物稳定性 B.掩盖异味 C.减少药物用量 D.改善外观 E.防止吸湿及虫蛀 点击查看答案&解析手机看题 单项选择题 2019...
13.1: DNA-Helix Überblick Desoxyribonukleinsäure, oder DNA, ist das genetische Material, das für die Weitergabe von Merkmalen von Generation zu Generation in allen Organismen und den meisten Viren zuständig ist. Die DNA besteht aus zwei Strängen von Nukleotiden, die sich umeinand...
Other articles where double helix is discussed: James Watson: …a molecular model for DNA—a double helix, which can be likened to a spiraling staircase or a twisting ladder. The DNA double helix consists of two intertwined sugar-phosphate chains, with t
The 3-dimensional double helix structure of DNA, correctly elucidated by James Watson and Francis Crick. Complementary bases are held together as a pair by hydrogen bonds. © 2013Nature EducationAll rights reserved. Figure Detail Although scientists have made some minor changes to the Watson and ...
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...