Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 13, Problem 4TY
Summary Introduction
Introduction:
The mutation can be described as a condition, in which the
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Mutations can be caused by which process?
faulty DNA repair
nondisjunction
base sequence deletion
All of the above
When DNA is being copied and a mistake is made while copying a gene, all of the following can result except:
-The same protein that was originally supposed to be made is still made
-A different protein can be made and will function differently
-A non-functional protein can be made
-Two proteins can be made
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 consequences
Chapter 13 Solutions
Principles of Biology
Ch. 13.1 - Prob. 1CCCh. 13.1 - Prob. 2CCCh. 13.1 - Prob. 1TYKCh. 13.1 - Prob. 2TYKCh. 13.2 - Prob. 1CCCh. 13.2 - Prob. 2CCCh. 13.2 - Prob. 1TYKCh. 13.2 - Prob. 2TYKCh. 13.3 - Prob. 1CCCh. 13.3 - Prob. 1TYK
Ch. 13.4 - Prob. 1CCCh. 13.4 - Prob. 1BCCh. 13.4 - Prob. 2CCCh. 13.4 - Prob. 3CCCh. 13.4 - Prob. 4CCCh. 13.4 - Prob. 1TYKCh. 13.4 - Prob. 2TYKCh. 13 - A mutation removes a single base pair within the...Ch. 13 - Prob. 2TYCh. 13 - Prob. 3TYCh. 13 - Prob. 4TYCh. 13 - Prob. 5TYCh. 13 - Prob. 6TYCh. 13 - Prob. 7TYCh. 13 - Prob. 8TYCh. 13 - Prob. 9TYCh. 13 - Prob. 10TYCh. 13 - Prob. 1CCQCh. 13 - Prob. 2CCQCh. 13 - Prob. 3CCQCh. 13 - Prob. 1CBQCh. 13 - Prob. 2CBQ
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- Cloning Genes Is a Multistep Process Which enzyme is responsible for covalently linking DNA strands together? a. DNA polymerase b. DNA ligase c. EcoRl d. restriction enzymes e. RNA polymerasearrow_forwardFill the Table with mutagenic agents and provide their type (physical, chemical, biological) and their classification based on their effect (teratogenic, carcinogenic, clastogenic, or non-specific), together with their modes of action. Mutagen Type of Mutagen Classification based on effect Action Heat 5-bromouracil Ethidium bromidearrow_forwardWhich of the following can only arise as a spontaneous mutation? Group of answer choices Gamma rays penetrate tissue and damage DNA Base analogs cause DNA to pair with the wrong base. Reactive forms of oxygen damage DNA In replication, thymine mispairs with guanine Nitrous acid deaminates cytosinearrow_forward
- The mutagen that most often causes thymine dimers is/are ________. Group of answer choices ultraviolet light reactive oxidants (free radicals) 5-bromouracil ethylmethane sulfonate acetaldehydearrow_forwardwhich of the following statements accurately describes genetic mutationsarrow_forwardSuppose that a chemical causes changes in DNA sequence. This chemical would be classified as a mutant. a mutagen. spontaneous. a drug. an antibiotic.arrow_forward
- Which of the following statements can be said about the enzyme telomerase? Select all the answers that apply. It removes RNA primers. It is highly expressed in cancer cells. It extends the length of telomeres. It exhibits reverse transcriptase activity. It shortens the ends of chromosomes.arrow_forwardWhich is the correct order of steps in a mutagenesis screen? a. Positional cloning, mutagenesis, identification of mutants, verification of genetic basis. b. Mutagenesis, positional cloning, identification of mutants, verification of genetic basis. c. Mutagenesis, identification of mutants, verification of genetic basis, positional cloning. d. Identification of mutants, positional cloning, mutagenesis, verification of genetic basis.arrow_forwardWhich of the following contribute to introducing genetic change into genomes? (select all the apply) -Errors in DNA repair resulting in translocations of DNA sequence between chromosomes - Movement of transposons -Transcription into RNA results in point mutations - Translation results in deletion of introns - Random errors when DNA is copied (replicated)arrow_forward
- Which of the following types of mutations will have the most devastating effect on a cell?A.frameshift mutationB. missense mutationC. nonsense mutationD. silent mutationarrow_forwardSome mutations or changes in the sequence of DNA, do not have any offect on the characteristics of the organism. Why Is this? The protein from this mutated sequence deactivated by the cell The mutated sequence still codes for the same amino acid The cell recognizes mutations and ignores them when expressing the gene The immune system repairs the mutated sequence during developmentarrow_forwardWhich of the following is true about DNA polymerase?a) It can synthesize DNA in the 5’ to 3’ directionb) It can synthesize DNA in the 3’ to 5’ directionc) It can synthesize mRNA in the 3’ to 5’ directiond) It can synthesize mRNA in the 5’ to 3’ directionarrow_forward
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