答:DNA的双螺旋(DNAdoublehelix)是一种核酸的构象,在该构象中,两条反向平行的多核苷酸链相互缠绕形成一个右手的双螺旋结构。碱基位于双螺旋内侧,磷酸与糖基在外侧,通过磷酸二酯键相连,形成核酸的骨架。碱基平面与假设的中心轴垂直,糖环平面则与轴平行,两条链皆为右手螺旋。双螺旋的直径为2nm,碱基堆积距离为0.34nm...
DNA双螺旋(DNA double helix):一种核酸的构象,在该构象中,两条反向平行的多核甘酸链相互缠绕形成一个右手的双螺旋结构.碱基位于双螺旋内侧,磷酸与糖基在外侧,通过磷酸二脂键相连,形成核酸的骨架.碱基平面与假象的... 分析总结。 一种核酸的构象在该构象中两条反向平行的多核甘酸链相互缠绕形成一个右手的双螺旋...
A student wants to modify model 1 so that it represents an RNA double helix instead of a DNA double helix. Of the following possible changes, which would be most effective in making model 1 look more like RNA than DNA?AChanging the sequence of the base pairsBChanging the deoxyriboses to...
该研究成果题为“Intratumoral tertiary lymphoid structure (TLS) maturation is influenced by draining lymph nodes of lung cancer”,由广州医科大学附属第一医院(国家呼吸医学中心)科研团队完成:发现肺癌引流淋巴结影响原位肿瘤三级淋巴样结构成熟过程,解释了TLS在淋巴结转移的患者中无法预测预后,以及新辅助免疫治疗中淋...
aThey create a doublehelix, a business DNA of its kind; the healthier it is genetically, the fuller is its –the business’s – actual responsibility 他们创造一doublehelix,它的种类企业脱氧核糖核酸; 越健康的它是基因上,越充分的是它的-事务的-实际责任 [translate] afactory update failed 工厂更新...
百度试题 结果1 题目1953年, 美国科学家Watson 和英国科学家Crick提出 DNA Double Helix model1962年Watson、 Crick与Wilkins共享诺贝尔生理医学奖 相关知识点: 试题来源: 解析 C值 (C Value):指一种生物单倍体基因组的DNA总量。反馈 收藏
百度试题 结果1 题目DNA双螺旋结构 : 相关知识点: 试题来源: 解析 DNA双螺旋(DNA double helix)是一种核酸的构象,在该构象中,两条反向平行的多核甘酸链相互缠绕形成一个右手的双螺旋结构。反馈 收藏
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The Watson-Crick model of DNA structure relates to the ___ form A nucleotide consists of: A B H Z C In which of the following organelle, a structure called cristae is found: Golgi bodies. Plasmamembrane Rough endoplasmic reticulum Mitochondria...
E. The basic structure of DNA, the double helix, was discovered by James Watson, later head of the Human Genome Project, along with another of two young scientists, the Englishman Francis Crick, in 1953. 本题来源: 2013年在职攻读硕士联考考试真题卷 ...