F DNA Structure and replication 1. DNA structure 2. Chromosomes 3. DNA replication in bacteria 4. DNA replication in eukaryotes
1. DNA structure 2. Chromosomes 3. DNA replication in bacteria 4. DNA replication in eukaryotes F DNA structure and replication
F1 DNA structure Bases碱基 Nucleosides核苷 Nucleotides核苷酸 3,5′- phosphodiester bonds磷酸二酯键 DNA sequence dNA double helix
• Bases碱基 • Nucleosides核苷 • Nucleotides核苷酸 • 3’,5’- phosphodiester bonds磷酸二酯键 • DNA sequence • DNA double helix F1 DNA structure
Acid B ase Adenine Monophosphate Guanine Purine Diphosphate Sugar Thymine Triphosphate Pentose/ Cytosine Pyrimidine 2’ Uracil Ribose Deoxyribose Nucleoside(Adenosine Nucleotide(Adenosine monophosphate, AMI
Base Sugar Acid Monophosphate Diphosphate Triphosphate Adenine Guanine Thymine Cytosine Uracil Nucleoside (Adenosine) Nucleotide (Adenosine monophosphate, AMP) Purine Pyrimidine Ribose, Deoxyribose 1’ 3’ 2’ 4’ 5’ Pentose
Pyrimidines嘧啶 N Uracil Thymine Cytosine L NH NH U C T
1 2 3 4 5 6 Uracil NH N H O O U N N H NH2 O Cytosine C NH N H O O Thymine T Pyrimidines嘧啶
Purines嘌呤 N H N ● Adenine腺嘌呤 NH 2 ● Guanine鸟嘌呤 NH H NH2 A
1 2 3 4 5 6 9 7 8 N N N H N NH2 ⚫Adenine腺嘌呤 A NH N N H N O NH2 ⚫Guanine鸟嘌呤 G Purines嘌呤