B. The Code A. Double helix by element mRNA: agu= Serin base pairs, hydrogen bonding NEW! Codons and Anti-Codons C. Strands and helical bac kbone D. Ends, Antiparallel lism
A. Double helix by element: base pairs, hydrogen bonding B. The Code Codons and Anti-Codons C. Strands and helical backbone D. Ends, Antiparallelism
DNA和RNA的分子结构和复制 DNA的化学结构 密啶 ]=: 廉呤 □胸腺密啶 ]=: s 核苷
DNA和RNA的分子结构和复制
Pentose sugars Ribose(in RNA) Deoxyribose(in DNA) H. H H HH HO H I OHOH HH OHOH 12345 12345
Phosphate Groups o=P-O Monophosphate Diphosphate (pyrophosphate) o-P-o-P-0-P-0 Triphosphate
DNA和RNA的分子结构和复制 DNA Sugar-<e 1953年, Cytosine and Molecule Thymine Bases Watson和 Two denine and Crick关 Views Guanine 于碱基互 补配对的 规律,阐 H H C H 明了DNA 的虫间结 叫H CH2 构
DNA和RNA的分子结构和复制 1953年， Watson和 Crick关 于碱基互 补配对的 规律，阐 明了DNA 的空间结 构