Introduction to General, Organic and Biochemistry
11th Edition
ISBN: 9781285869759
Author: Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher: Cengage Learning
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Textbook Question
Chapter 25, Problem 25.76P
25-76 When cytosine is deaminated, uracil is formed.
Uracil is a naturally occurring base. Why would the
cell use base excision repair to remove it?
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Chapter 25 Solutions
Introduction to General, Organic and Biochemistry
Ch. 25.2 - Problem 25-1 Draw the structure of UMP.Ch. 25 - 25-2 What structures Of the cell, visible in a...Ch. 25 - 25-3 Name one hereditary disease.Ch. 25 - 25-4 What is the basis unit of heredity?Ch. 25 - 25-5 (a) Where in a cell is the DNA located? (b)...Ch. 25 - 25-6 What are the components of (a) a nucleotide...Ch. 25 - 25-7 What are the differences between DNA and RNA?Ch. 25 - 25-8 Draw the structures of ADP and GDP. Are these...Ch. 25 - Prob. 25.9PCh. 25 - 25-10 Which DNA and RNA bases contain a carbonyl...
Ch. 25 - Prob. 25.11PCh. 25 - Prob. 25.12PCh. 25 - Prob. 25.13PCh. 25 - Prob. 25.14PCh. 25 - Prob. 25.15PCh. 25 - Prob. 25.16PCh. 25 - Prob. 25.17PCh. 25 - 25-18 What type of bond connects the base to the...Ch. 25 - Prob. 25.19PCh. 25 - 25-20 What constitutes the backbone of DNA?Ch. 25 - Prob. 25.21PCh. 25 - 25-22 In DNA, which carbon atoms of...Ch. 25 - 25-23 The sequence Of a short DNA segment is...Ch. 25 - Prob. 25.24PCh. 25 - Prob. 25.25PCh. 25 - Prob. 25.26PCh. 25 - Prob. 25.27PCh. 25 - Prob. 25.28PCh. 25 - 25-29 What constitutes the superstructure of...Ch. 25 - 25-30 What is the primary structure of DNA?Ch. 25 - 25-31 What is the secondary structure of DNA?Ch. 25 - 25-32 What is the major groove of a DNA helix?Ch. 25 - 25-33 What are the higher-order structures of DNA...Ch. 25 - 25-34 Which type Of RNA has enzyme activity? Where...Ch. 25 - 25-35 Which has the longest chains: tRNA, mRNA, or...Ch. 25 - 25-36 Which type of RNA contains modified...Ch. 25 - 25-37 Which type Of RNA has a sequence exactly...Ch. 25 - 25-38 Where is rRNA located in the cell?Ch. 25 - Prob. 25.39PCh. 25 - Prob. 25.40PCh. 25 - Prob. 25.41PCh. 25 - Prob. 25.42PCh. 25 - Prob. 25.43PCh. 25 - 25-44 What is IncRNA and what does it do?Ch. 25 - Prob. 25.45PCh. 25 - Prob. 25.46PCh. 25 - Prob. 25.47PCh. 25 - Prob. 25.48PCh. 25 - Prob. 25.49PCh. 25 - 25-50 Define: (a) Intron (b) ExonCh. 25 - 25-51 Does mRNA also have introns and exons?...Ch. 25 - Prob. 25.52PCh. 25 - Prob. 25.53PCh. 25 - 25-54 Do all genes code for a protein? If not,...Ch. 25 - 25-55 A DNA molecule normally replicates itself...Ch. 25 - 25-56 Which functional groups on the bases form...Ch. 25 - Prob. 25.57PCh. 25 - 25-58 Draw the structures of cytosine and guanine...Ch. 25 - 25-59 How many different bases are present in a...Ch. 25 - Prob. 25.60PCh. 25 - 25-61 Why is replication called semiconservative?Ch. 25 - 25-62 How does the removal of some positive...Ch. 25 - 25-63 Write the chemical reaction for the...Ch. 25 - Prob. 25.64PCh. 25 - 25-65 What are helicases? What is their function?Ch. 25 - 25-66 Can dATP Serve as a source for a primer?Ch. 25 - Prob. 25.67PCh. 25 - Prob. 25.68PCh. 25 - 25-69 In which direction is the DNA molecule...Ch. 25 - Prob. 25.70PCh. 25 - Prob. 25.71PCh. 25 - Prob. 25.72PCh. 25 - 25-73 From the perspective of the chain being...Ch. 25 - Prob. 25.74PCh. 25 - Prob. 25.75PCh. 25 - 25-76 When cytosine is deaminated, uracil is...Ch. 25 - Prob. 25.77PCh. 25 - 25-78 What are AP sites? Which enzyme creates...Ch. 25 - Prob. 25.79PCh. 25 - Prob. 25.80PCh. 25 - Prob. 25.81PCh. 25 - Prob. 25.82PCh. 25 - Prob. 25.83PCh. 25 - Prob. 25.84PCh. 25 - Prob. 25.85PCh. 25 - Prob. 25.86PCh. 25 - Prob. 25.87PCh. 25 - 25-88 (Chemical Connections 25B) How does...Ch. 25 - Prob. 25.89PCh. 25 - Prob. 25.90PCh. 25 - Prob. 25.91PCh. 25 - Prob. 25.92PCh. 25 - Prob. 25.93PCh. 25 - 25-94 (Chemical Connection 25D) What would be some...Ch. 25 - Prob. 25.95PCh. 25 - (Chemical Connection 25D) Why might a person make...Ch. 25 - Prob. 25.97PCh. 25 - Prob. 25.98PCh. 25 - Prob. 25.99PCh. 25 - Prob. 25.100PCh. 25 - Prob. 25.101PCh. 25 - Prob. 25.102PCh. 25 - Prob. 25.103PCh. 25 - -104 Why is it important that a DNA molecule be...Ch. 25 - Prob. 25.105PCh. 25 - Prob. 25.106PCh. 25 - Prob. 25.107PCh. 25 - Prob. 25.108PCh. 25 - -109 In sheep DNA, the mol% of adenine (A) was...Ch. 25 - Prob. 25.110PCh. 25 - Prob. 25.111PCh. 25 - Prob. 25.112PCh. 25 - Prob. 25.113PCh. 25 - -114 How could life have evolved if DNA leads to...Ch. 25 - Prob. 25.115PCh. 25 - Prob. 25.116PCh. 25 - Prob. 25.117P
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