Chapter 16 Molecular Basis of Inheritance
Subject:
Biology [1]
Tags:
DNA Replication [2]
Biology [3]
Genetics [5]
Replication fork [6]
DNA polymerase [9]
Primase [10]
Primer [11]
Replisome [12]
DNA [13]
Chapter 16 The Molecular Basis of Inheritance Sugar?phosphate backbone 5? end Nitrogenous bases Thymine (T) Adenine (A) Cytosine (C) DNA nucleotide Phosphate 3? end Guanine (G) Sugar (deoxyribose) LE 16-8 Adenine (A) Thymine (T) Guanine (G) Cytosine (C) Sugar Sugar Sugar Sugar 5? end 3? end 5? end 3? end Space-filling model Partial chemical structure Hydrogen bond Key features of DNA structure 0.34 nm 3.4 nm 1 nm Structure of DNA The parent molecule has two complementary strands of DNA. Each base is paired by hydrogen bonding with its specific partner, A with T and G with C. The first step in replication is separation of the two DNA strands. The parent molecule has two complementary