Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 15, Problem 5TY
Summary Introduction
Introduction: A mutation is a sudden change in the genome of an organism. The causative agents which cause the phenomenon of mutation are called mutagens. Mutagens can cause the alteration in the genome of an organism, which, most of the time are fatal to the organism’s body.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A biology professor at a prestigious university stated to his introductory
class that "Today, a basic understanding of DNA and genetics is as important as a basic understanding of computers and the internet."Based upon what you have learned about DNA and gene expression in this module, how could you make a case to support this statement?
Which of the following is true of reverse transcriptase?a. It is required for the movement of DNA transposons.b. It catalyzes the synthesis of DNA from RNA.c. It is required for the transposition of retrotransposons.d. b and c are correct.
In the treatment of cancer, the basis for many types of chemotherapyand radiation therapy is that mutagens are more effective at killingdividing cells than nondividing cells. Explain why. What are possibleharmful side effects of chemotherapy and radiation therapy?
Chapter 15 Solutions
Biology
Ch. 15.1 - Consequences of Mutations Concept Check: Based on...Ch. 15.1 - Prob. 2CCCh. 15.2 - Prob. 1EQCh. 15.2 - Prob. 2EQCh. 15.2 - Prob. 3EQCh. 15.2 - Prob. 1CCCh. 15.3 - DNA Repair Concept Check: Which components of the...Ch. 15.3 - Why is this person so sensitive to sunlight?...Ch. 15.4 - Prob. 1CCCh. 15.4 - Prob. 2CS
Ch. 15.4 - Prob. 2CCCh. 15.4 - Prob. 3CCCh. 15.4 - Prob. 4CCCh. 15 - Prob. 1TYCh. 15 - Prob. 2TYCh. 15 - Prob. 3TYCh. 15 - Prob. 4TYCh. 15 - Prob. 5TYCh. 15 - The Ames test a. provides a way to determine if...Ch. 15 - Xeroderma pigmentosum a. is a genetic disorder...Ch. 15 - Prob. 8TYCh. 15 - Prob. 9TYCh. 15 - Prob. 10TYCh. 15 - Prob. 1CQCh. 15 - Prob. 2CQCh. 15 - Prob. 3CQCh. 15 - Prob. 1COQCh. 15 - Distinguish between spontaneous and induced...
Knowledge Booster
Learn more about
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
- A mutagen changes a C-G basepair in the genome to an A-T basepair. This is an example of... A different mutagen changes a C-G basepair in the genome to a T-A basepair. This is an example of... a. transition b. inversion c. transversion d. epigeneticarrow_forwardResearchers sometimes use gamma rays to induce deletion mutations in certain organisms and thus create mutant strains. What might this suggest regarding how exactly gamma rays interact with DNA? What are they probably causing to happen that results in these deletion mutations?arrow_forwardWhy are mutations more likely to occur in repeated DNA sequences? a. These bases are unstable b. bases in the strand can form base pairs, generating loops that interfere with replication and repair enzymes. c. The repeats hold onto the replication enzymes, causing base mismatches d. the repeats attract and bind to mutagens, increasing the mutation ratearrow_forward
- Mutagens can cause mutations bya. chemically altering DNA nucleotides.b. disrupting DNA replication.c. altering the genetic code of an organism.d. all of the above.e. a and b only.arrow_forwardA. What is the pathogen that is attacking bananas today?b. Why is this especially problematic in Africa? C. Why do we expect to lose the war with this pathogen?d. What is random mutagenesis?arrow_forwardXeroderma pigmentosum is a genetic disease caused by an error in the nucleotide excision repair process that fixes damage to DNA by ultraviolet light. Studies have shown that it can result from mutations in any one of seven genes. What can you infer from this finding? A) There are seven genes that produce the same protein B) These seven genes are the most easily damaged by ultraviolet light. C) There are seven enzymes involved in the nucleotide excision repair process. D) These mutations have resulted from translocation of gene segments.arrow_forward
- Explain how a mutagen can interfere with DNA replication to cause a mutation. Give two examples.arrow_forwardDuring an Ames test, what does it mean when S. typhimurium is his+? A. The sample is completely safe for humans B. The sample is safe for humans but has a chance to be a mutagen C. The sample is not safe for humans and is considered a mutagen D. The sample is not safe and is hypothetically a mutagenarrow_forwardThe original DNA base sequence is 5’-AGCGTTACCGT-3’; a mutation in the DNA strand results in the base sequence 5’-AGGCGTTACCGT-3’. What can you conclude about the mutation? A. It is a frameshift mutation. B. It is a silent mutation. C. It is a deleterious mutation. D. It may result in a single amino acid change in the protein being coded for by this base sequence.arrow_forward
- Which of the following is NOT an example of a spontaneous mutation? A) errors in replication of DNA polymerase B) ALL of these are examples of spontaneous mutations C) covalent alteration of DNA by chemical products of fatty acid metabolism D) incorporation of a nucleotide analog during DNA synthesis E) failure to correct an apurinic site F) nondisjunction during meiosisarrow_forwardWhich of the following statements describe reversal of DNA repair mechanism. A. UV light blocks the translation of mRNA beyond the damaged area B. Reversal of DNA repair mechanism requires a DNA template C. UV light is needed to initiate the formation of pyrimidine dimers D. None of the statement is correctarrow_forwardThe experiment below is from a seminal set of experiments in the 1960s that illustrated the role of various repair pathways for DNA damage caused by UV radiation. In this experiment, the scientists isolated E coli strains that are mutant in the Rec A gene, the UvrA gene or both. They then irradiated cultures of each strain with increasing doses of UV light and measured the effect on cell viability. Answer the following questions about this data. A. Which DNA repair pathway and repair activity is inhibited by the Rec A mutant? B. Which DNA repair pathway and repair function is inhibited by UvrA mutant? C. Why is the UvrA/RecA double mutant so much more senitive to UV light than either mutant alone?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage LearningConcepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax CollegeHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Mitochondrial mutations; Author: Useful Genetics;https://www.youtube.com/watch?v=GvgXe-3RJeU;License: CC-BY