DNA的结构 DNA双螺旋结构模型的构建 ConstructionofDNAdoublehelixstructuremodel 沃森（J.D.Wstson)&克里克（F.Crick）卡文迪许实验室 生物学家 物理学家 经典遗传学发展之路 米歇尔：首先发现核酸 科塞尔：核酸含有嘌呤和嘧啶 科塞尔：1910年诺贝尔 生理学与医学奖 科塞尔 A·Kossel1853-1927 （1）1885至1901年间：...
BasesofDNA(andRNA) RNAonly DNAonly Purines: Pyrimidines: NucleotidesandNucleosides ChemicalStructureofDNAandRNA Figure4.1 RNA DNA Nucleotide Nucleoside 1’ 2’ 4’ TheCis named1’-5’ NucleotidesandNucleosides Nucleotidesarenucleosides+phosphate
第二节 DNA的结构Structure of DNA.ppt,戊糖 核糖 核酸的元素组成 1、 DNA双螺旋模型的提出 a.研究背景: 1950年,Chargaff从大量的不同来源的DNA样品的分析中发现了DNA组成的当量规律,即A=T,G=C,A+G=C+T。 不同生物种属的DNA碱基组成不同, 同一个体不同器官、不
DNA Structure The sugar-phosphate backbone is in an anti-parallel direction. The 5’ and 3’ ends of the backbone are on opposite sides. Each side of a DNA molecule is actually running in the opposite direction. All DNA molecules are built from 5’ to 3’. DNA Structure The 5’ to 3...
Learning Objectives Describe the overall structure of the DNA molecule Chromosomes and DNA Chromosomes are made up of DNA and protein. A gene is a sequence of DNA found in chromosomes. DeoxyriboNucleic Acid All life on earth uses DNA to carry its genetic code or blueprint. ...
基因是有遗传效应的dnappt课件 热度: NucleotideandNucleicAcidNucleotideandNucleicAcid Dr.SajidMehmood AssistantProfessor HeadofDepartment DepartmentofBiochemistry NSMC,UniversityofGujrat Gujrat,Pakistan ChromatinStructureChromatinStructure NucleotidesNucleotides
1 第一节基因与基因组的概念第二节真核基因组结构 第三节原核基因组结构第四节病毒基因组结构 ppt课件.2 一、基因Gene二、基因组Genome三、基因组结构Structureofgenome四、基因密度Genedensity ppt课件.3 HumanGenome ppt课件.4 一、基因Gene •基因的现代分子生物学定义：合成有功能的蛋白质多肽链或RNA所必需...
DNA重排.ppt.ppt,谢谢大家! Stein Figure 2 (Harris et al). Events in B-cell receptor gene rearrangement. Schematic representation of the immunoglobulin gene rearrangement and of the resulting protein. Abbreviations: V, Variability segment; D, Diversity se
1.thestructureandthefunctionofmacromolecules.（大分子的结构与功能）2.theregulationandcontrolofgeneexpression.（基因表达的调控）3.theDNArecombinationtechnique.（DNA重组技术）4.thestructureandthefunctionofgenome,Bioinformatics.(基因组结构和功能，生物信息学)6 分子生物学常用参考书目 1.分子遗传学(孙乃恩)2.现代...
45、he local DNA structure The transcription in eukaryotes71A:T base pairs (TATA box) are favored because they are more readily distorted to allow initial opening of the minor groove72The other GTFs also have specific roles in initiation10 TAFs in TFIID: (1) two of them bind DNA elements ...