Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Chapter 15.1, Problem 4R
Summary Introduction
To review:
The reason for the involvement of G–C (guanine–cytosine) base pairs in many mutations.
Introduction:
DNA (deoxyribonucleic acid) is composed of two types of nitrogen-containing base, called purines and pyrimidines. The purines involve adenine and guanine and pyrimidines involve thymine and cytosine. Adenine joins with thymine and guanine joins with cytosine.
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Is it possible to have a mutation in nucleotide four that would produce the same amino acid? If yes provide an example.
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Chapter 15 Solutions
Life: The Science of Biology
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- What is is the addition of one or more nucleotide pairs?arrow_forwardDoes a single base-pair substitution in a strand of DNA always result in a new amino acid in the protein coded for by that gene? Why or why not?arrow_forwardWhy is a mutation of a base in a DNA sequence much more serious than a mutation in a transcribed mRNA sequence?arrow_forward
- How do cells know that there is something wrong with the DNA?arrow_forwardIn a single strand of DNA, is it ever possible for the number of adenines to be greater than the number of thymines? Describearrow_forwardTwo highly negatively charged complementary strands of DNA come together to form a double helix. What prevents them from repelling each other?arrow_forward
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