Ch. 15 - Gene Mutation, DNA Repair, and Transposition
Chapter 15, Problem 8
What is the difference between a silent mutation and a neutral mutation?
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Related Practice
Textbook Question
Most mutations are thought to be deleterious. Why, then, is it reasonable to state that mutations are essential to the evolutionary process?
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Textbook Question
Why is a random mutation more likely to be deleterious than beneficial?
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Textbook Question
Most mutations in a diploid organism are recessive. Why?
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Textbook Question
When the amino acid sequences of insulin isolated from different organisms were determined, differences were noted. For example, alanine was substituted for threonine, serine for glycine, and valine for isoleucine at corresponding positions in the protein. List the single-base changes that could occur in codons of the genetic code to produce these amino acid changes.
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Textbook Question
Describe a tautomeric shift and how it may lead to a mutation.
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Textbook Question
In studies of the amino acid sequence of wild-type and mutant forms of tryptophan synthetase in E. coli, the following changes have been observed:
Determine a set of triplet codes in which only a single-nucleotide change produces each amino acid change.
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