EBio - notes3 - DNA Replication 11-13

EBio - notes3 - DNA Replication 11-13 - DNA REPLICATION:...

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DNA REPLICATION: Nucleotides, deoxyribose, phosphate covalent bonds, hydrogen bonds 5’, 3’ Complementary, semiconservative Origin of replication, DNA polymerase, Okazaki fragments Helicase, single stranded binding protein, topoisomerase Chapter 16, Figures 16.5, 7, 8, 9, 12, 14 CONCEPT: Nucleotides are the building blocks of DNA 1. Provides directionality (5’, 3’) 2. Provides structure “backbone” 3. Important in covalent bonds Sugar- deoxyribose 3’ and 5’ carbon of sugar are important!!! Phosphate group 1. Provides energy for synthesis 2. Provides structure “backbone” 3. Important for covalent bonds
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Nucleotides are chemically similar to ATP: energy Base: cytosine (C), Thymine (T),adenine (A), guanine (G) 1. Genetic code 2. Hydrogen bonding double strands Pyrimidines (T, C) have 1 ring, Purines (A, G) have 2 rings DNA: each strand consists of nucleotides covalently bonded through sugar-phosphate groups DNA: two strands hydrogen bonded through nitrogenous bases
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EBio - notes3 - DNA Replication 11-13 - DNA REPLICATION:...

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