Biology
4th Edition
ISBN: 9781259188121
Author: Peter Stiling, Robert Brooker, Linda Graham, Eric Widmaier
Publisher: McGraw-Hill Education
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Chapter 14, Problem 4TY
Summary Introduction
Introduction: Those factors which cause the mutations are known as mutagens. The mutagens can be derived from the environment such as UV lights or x-rays. The influence of high amount of mutagen on an organism can lead to the formation of thymine dimer, which is very harmful to the organism.
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In general, all mutations can be considered harmful, because most genetic systems are already optimized to work correctly and efficiently.
A. True
b. False; mutations are considered harmful only if they have a direct effect on the ability of cells to synthesize DNA
c. False; some mutations are harmful, and some are considered beneficial
Which of the following is NOT true about mutations?
A. Mutations can be harmful but not beneficial to the cell
B. Nucleotide substitution in DNA can cause nonsense mutations
C. Nucleotide substitution in DNA can cause missense mutations
D. Mutagens increase the rate of mutation, but mutations are still random
E. Nucleotide insertion or deletion in DNA can cause frameshift mutations
Which of the following terms refer to the case when a mutation results in a significant decrease or a complete loss of the functional activity of a gene product?
a. gain-of-function mutation
b. loss-of-function mutation
Chapter 14 Solutions
Biology
Ch. 14.1 - Consequences of Mutations Concept Check: Based on...Ch. 14.1 - Prob. 2CCCh. 14.1 - Prob. 3CCCh. 14.2 - Prob. 1EQCh. 14.2 - Prob. 2EQCh. 14.2 - Prob. 3EQCh. 14.2 - Prob. 1CCCh. 14.2 - Prob. 2CCCh. 14.3 - DNA Repair Concept Check: Which components of the...Ch. 14.3 - Why is this person so sensitive to sunlight?...
Ch. 14.4 - Prob. 1CCCh. 14.4 - Prob. 1BCCh. 14.4 - Prob. 2CCCh. 14.4 - Prob. 3CCCh. 14.4 - Prob. 4CCCh. 14 - Prob. 1TYCh. 14 - Prob. 2TYCh. 14 - Prob. 3TYCh. 14 - Prob. 4TYCh. 14 - Prob. 5TYCh. 14 - The Ames test a. provides a way to determine if...Ch. 14 - Xeroderma pigmentosum a. is a genetic disorder...Ch. 14 - Prob. 8TYCh. 14 - Prob. 9TYCh. 14 - Prob. 10TYCh. 14 - Prob. 1CQCh. 14 - Prob. 2CQCh. 14 - Prob. 3CQCh. 14 - Prob. 1COQCh. 14 - Distinguish between spontaneous and induced...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- When using gene therapy to treat an hereditary disease, the idea is to: A. Introduce the correct gene into the patient's DNA B. Inject the patient with a specific protein to cure the disease. C. Blood transfusions from healthy individuals. D. ntroduce mRNA molecules with the correct genetic information to the patient. E. Introduce a virus to the patient that will specifically destroy mutated cells.arrow_forwardInduced mutations A. are a random change in the DNA arising from errors in replications B. are a result of exposure to a mutagen C. always have a positive effect on the organism D. always have a negative effect on the organismarrow_forwardA SNV mutation that results in no change in the amino acid sequence is called: A. silent mutation B. silencing mutation C. missense mutation D. nonsense mutation E. frameshift mutationarrow_forward
- Which of the following is true about the enzyme telomerase? A. It is found only in adult cells. B. It is responsible for telomere shortening. C. It can re-establish telomere length. D. It may speed up the aging process. E. It is expressed at low levels in cancer cells.arrow_forwardWhich of the following types of mutations will have the most devastating effect on a cell?A.frameshift mutationB. missense mutationC. nonsense mutationD. silent mutationarrow_forwardA mutation changes a codon that specifies tyrosine into a stopcodon. This type of mutation is aa. missense mutation.b. nonsense mutation.c. frameshift mutation.d. neutral mutation.arrow_forward
- Which of the following is true about DNA manipulation? Select the best answer. A. all of these B. DNA has never been transferred between different organisms. C. Transferring DNA from one organism into another always kills the host organism. D. Whole genomes have been manipulated by humans for centuries; now individual genes ca be inserted into different organisms using a variety of techniques. E. DNA can't be manipulated.arrow_forwardMutation rates are typically low due toa. proofreading by DNA polymerase.b. DNA repair enzymes.c. silent mutations.d. None of these are correct.e. All of these are correct.arrow_forwardA.) There is no change in the DNA sequence if nucleotides are added or removed, it will have no effect to the cell. B.) Mutations in the DNA sequence are all irreversible. A. Statement A is correct B. Statement B is correct C. Both A and B are correct D. Both A and B are incorrectarrow_forward
- Which of the following mutations is NOT a point mutation? A. Missense mutation B. Insertion mutation C. Nonsense mutation D. Silent mutationarrow_forwardWhich of the following is a good definiton of "mutation."A. A change in the nucleotide sequence of a gene.B. A change that produces a mutant protein.C. A change that creates a disease.D. A change in the structure of a triglyceride.E. All of the above. Pls explain each choicesarrow_forwardDNA cloning refers to a. making cloned bacteria. b. making cloned sheep or other eukaryotic organisms. c. how they made all those clones of strom troopers in Star Wars universe. d. probably all of the above, but generally, methods of making exact copies of DNA. e. none of the above.arrow_forward
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