DNA Polymer of nucleotides: 5'End 3End adenine,thymine, cytosine,guanine ⊙5 HO Double helix associated 31 1A 2 with proteins ® "Backbone"is deoxyribose-phosphate ● Strands held together by G hydrogen bonds between AT and CG Strands are antiparallel OH 3'End 5'End Figure 8.4
• Polymer of nucleotides: adenine, thymine, cytosine, guanine • Double helix associated with proteins • "Backbone" is deoxyribose-phosphate • Strands held together by hydrogen bonds between AT and CG • Strands are antiparallel DNA Figure 8.4
DNA Parenta Parental strand CG strand A Key: TThymine A☐Adenine A c Cytosine G Guanine C#》G Deoxyribose sugar A出 Phosphate Hydrogen bond A G【 Replication fork G G Nucleotide A C》G D#A■ Daughter Parental Daughter strand Parental strand strand forming strand Figure 8.3
DNA Figure 8.3