Microbiology: Principles and Explorations
10th Edition
ISBN: 9781119390114
Author: Black
Publisher: WILEY
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Textbook Question
Chapter 8, Problem 4.1SC
If you had be exposed to a mutagen,would you rather it be one that causes point mutations or one that causes frameshift mutations? Why?
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Although it is well known that X-rays cause mutations, they are routinely used to diagnose medical problems, including potential tumors, broken bones, and dental cavities. So why do we still use X-rays in medicine anyway? What precautions need to be taken?
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Chapter 8 Solutions
Microbiology: Principles and Explorations
Ch. 8 - Compare and contrast chromosomes in prokaryotes...Ch. 8 - DNA is not always the gemetic material. What are...Ch. 8 - How could mutations give rise to new alleles of a...Ch. 8 - How does trandlation differ from transcription?Ch. 8 - Distinguish between leading and lagging strands.Ch. 8 - What do 5 and 3 refer to? How do they determine...Ch. 8 - Contrast the three kinds of RNA. Does DNA make all...Ch. 8 - What feeds back in feedback inhibition? What does...Ch. 8 - What is the inducer for the lac operon?Ch. 8 - Compare enzyme induction and enzyme repression.
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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
- Statistically, are mutations almost always beneficial or harmful? Why?arrow_forwardEarlier, we described the Lederbergs’experiment, which demonstrated thatmutations are not directed by the environment. But mutagens, which areenvironmental, can lead to mutations. What’s the difference?arrow_forwardAre mutations equally likely to occur in all locations in the genome? Why or why not?arrow_forward
- Are mutations good or bad? Explain your answerarrow_forwardEarlier, we described the Lederbergs’experiment, which demonstrated that mutations are not directedby the environment. But mutagens, which are environmental, canlead to mutations. What’s the difference?arrow_forwardAre mutations random events? Explain your answer.arrow_forward
- An original mutation, one that has never been seen before, has just occurred in a body cell. What will determine if this mutation affects the organism?.arrow_forwardWhat is cloning? How is it done?arrow_forwardExplain how a mutagen can interfere with DNA replication to cause a mutation. Give two examples.arrow_forward
- What type of mutation (transition, transversion, or frameshift)would you expect each of the following mutagens to cause?A. Nitrous acidB. 5-BromouracilC. Proflavinarrow_forwardIf the codon AAA is mutated to AAG, it still codes for the amino acid, lysine, and the protein remains functionally the same; which of the following would best describe the result of this mutation? 1) frameshift mutation. O 2) insertion mutation. O 3) silent mutation. 4) nonsense mutation. O 5) back mutation.arrow_forwardCan you explain silent, beneficial, harmful, and lethal mutations?arrow_forward
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