Biology: Life on Earth (11th Edition)
11th Edition
ISBN: 9780134256283
Author: Audesirk
Publisher: PEARSON
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Chapter 13, Problem 6FTB
Summary Introduction
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The given blank space in the statement, “if a
Introduction:
Any change that occurs in the nucleotide sequence of a gene cause mutation. They are the errors in a base pairing that occurs during the replication process probably because of the chemical agents or radiations. There are different types of mutations and they are responsible for the alteration or disruption in a protein function.
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Which of the following mutations near the beginning of a gene likely results in numerous amino acid changes in the resulting protein?
insertion of three consecutive nucleotides.
deletion of three consecutive nucleotides
replacement of two consecutive nucleotides with two other nucleotides
replacement of one nucleotide for another nucleotide
insertion of two consecutive nucleotides
Which of the following mutations involve the loss of one or more nucleotides from a gene sequence?
A. Deletion
B. Insertion
C. Base-pair substitution
If a nucleotide is replaced by a different nucleotide, this is called a(n) _________mutation.________mutations occur if nucleotides are added in the middle of a gene._________ mutations occur if nucleotides are removed from the middle of a gene.
Chapter 13 Solutions
Biology: Life on Earth (11th Edition)
Ch. 13 - 1. The molecule that carries the genetic...Ch. 13 - 2. Which of the following is not true of...Ch. 13 - 3. A stop codon
a. signals the end of protein...Ch. 13 - Prob. 4MCCh. 13 - Epigenetic modification of gene expression a....Ch. 13 - Prob. 1FTBCh. 13 - The three types of RNA that are essential for...Ch. 13 - 3. The genetic code uses______ (how many?) bases...Ch. 13 - The enzyme_______ synthesizes RNA from the...Ch. 13 - Prob. 5FTB
Ch. 13 - Prob. 6FTBCh. 13 - How does RNA differ from DNA?Ch. 13 - Prob. 2RQCh. 13 - Define the following terms: genetic code, codon,...Ch. 13 - 4. How is mRNA formed from a eukaryotic gene?
Ch. 13 - 5. Diagram and describe protein synthesis.
Ch. 13 - 6. Explain how complementary base pairing is...Ch. 13 - 7. Describe the principal mechanisms of regulating...Ch. 13 - Define mutation. Describe four different effects...Ch. 13 - Many years ago, some researchers reported that...Ch. 13 - Prob. 2AC
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- Which of the following statements best describes the effect of mutations in DNA? A Mutations result in changes that can be positive, be negative, or have no consequences B Mutations result in changes that always have negative consequences C Mutations result in changes that cannot be detected unless it is revealed by genetic screening D Mutations result in changes that have no consequencesarrow_forwardWhat type of mutation can we get if we use phones and laptops too mucharrow_forwardIf one nucleotide is randomly changed in a DNA sequence, that is an example of ___ mutationarrow_forward
- Which of the following describes a silent mutation that is undetectable in the final protein sequence? Group of answer choices A base change that codes for a chemically different amino acid A base change that results in a different codon for the same amino aci A base change that codes for a stop codon A base change that codes for a chemically similar amino acidarrow_forwardIn your own words, describe which type of mutation causes a greater change in the phenotype of an organism: insertions and deletions or point mutations.arrow_forward_____ is a change in the order of one nucleotide in a section of a DNA molecule. a Point mutation b Spontaneous mutation c Somatic mutation d Germ mutationarrow_forward
- _______________ is the chance that a specific base pair will change, while _______________ is the chance that a gene will have a function-altering mutation. Group of answer choices Mutation frequency; mutated-gene rate Mutation rate; mutation frequency Mutation frequency; mutation rate Mutation rate; mutated-gene frequencyarrow_forwardWhich of the following mutations will MOST drastically change the polypeptide sequence for which the DNA codes? 1 base pair change 2 base pair changes 3 consecutive insertions 1 insertionarrow_forwardFinally, imagine that a mutation occurred in the codon below and an A was inserted between the two Ts. How would this affect the mRNA and the amino acid for that codon? Old DNA codon Old RNA codon Old amino acid New DNA codon New mRNA codon New amino acid T T G T A T G This would be an example of which type of a mutation?__________________________arrow_forward
- Which of the following mutations would be the LEAST likely to have a harmful effect on an organism? A. insertion of three nucleotides near the middle of a gene B. a single nucleotide substitution that produces a codon that codes for the same amino acid C. a single nucleotide insertion near the end of the coding sequence D. a single nucleotide insertion close to the start of the coding sequencearrow_forwardWhich of the following point mutations would properly be defined as a transition mutation? the conversion of adenosine into cytidine the conversion of thymidine into guanosine the conversion of uridine into adenosine the conversion of cytidine into thymidine the conversion of guanosine into uridinearrow_forwardAn addition or deletion mutation that results in all of the amino acids after the mutation being wrong is calledarrow_forward
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