Brock Biology of Microorganisms (14th Edition)
14th Edition
ISBN: 9780321897398
Author: Michael T. Madigan, John M. Martinko, Kelly S. Bender, Daniel H. Buckley, David A. Stahl, Thomas Brock
Publisher: PEARSON
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Chapter 18.9, Problem 2MQ
- What is the simplest explanation for why lunar sulfides are isotopically similar to those of the primordial Earth?
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Chapter 18 Solutions
Brock Biology of Microorganisms (14th Edition)
Ch. 18.1 - Describe the enrichment strategy behind...Ch. 18.1 - Why is sulfate (So42) added to a Winogradsky...Ch. 18.1 - What is enrichment bias? How does dilution reduce...Ch. 18.2 - How does the agar dilution method differ from...Ch. 18.2 - How might you isolate a morphologically unique...Ch. 18.2 - What is meant by high-throughput in culturing...Ch. 18.3 - How does viability staining differ from stains...Ch. 18.3 - Prob. 2MQCh. 18.3 - Why is it incorrect to say that the GFP is a...Ch. 18.4 - What structure in the cell is the target for...
Ch. 18.4 - FISH and CARD-FISH can be used to reveal different...Ch. 18.5 - What could you conclude from PCR/DGGE analysis of...Ch. 18.5 - What surprising finding has come out of many...Ch. 18.6 - MINIQUIZ
• What is a phylochip and what can it...Ch. 18.6 - What are the advantages and disadvantages of...Ch. 18.6 - Prob. 3MQCh. 18.7 - Prob. 1MQCh. 18.7 - How do environmental genomic approaches differ...Ch. 18.7 - Prob. 3MQCh. 18.8 - Prob. 1MQCh. 18.8 - If a large pulse of organic matter entered the...Ch. 18.9 - Prob. 1MQCh. 18.9 - What is the simplest explanation for why lunar...Ch. 18.9 - What is the expected isotopic composition of...Ch. 18.10 - How could NanoSIMS be used to identify a...Ch. 18.10 - Prob. 2MQCh. 18.10 - How does MAR-FISH link microbial diversity and...Ch. 18.11 - How can stable isotope probing reveal the identity...Ch. 18.11 - What key method is required to do genomics on a...Ch. 18.11 - Prob. 3MQCh. 18 - Prob. 1RQCh. 18 - Prob. 2RQCh. 18 - Prob. 3RQCh. 18 - Prob. 4RQCh. 18 - Prob. 5RQCh. 18 - Prob. 6RQCh. 18 - Prob. 7RQCh. 18 - Prob. 8RQCh. 18 - Prob. 9RQCh. 18 - REVIEW QUESTIONS
10. Why is a microarray not...Ch. 18 - Prob. 11RQCh. 18 - Prob. 12RQCh. 18 - Q What are the major advantages of radioisotopic...Ch. 18 - Prob. 14RQCh. 18 - Prob. 15RQCh. 18 - REVIEW QUESTIONS
16. What is the advantage of...Ch. 18 - Prob. 17RQCh. 18 - Design an experiment for measuring the activity of...Ch. 18 - You wish to know whether Archaea exist in a lake...Ch. 18 - Design an experiment to solve the following...Ch. 18 - Design a SIP experiment that would allow you to...
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- What characteristics of carbon make possible the existence of so many different organic compounds?arrow_forwardSelenium is generally considered a toxic element. (It is the active component of loco weed.) However, there is growing evidence that selenium is also an essential trace element. Because glutathione peroxidase activity is crucial to the protection of red blood cells against oxidative stress, a selenium deficiency can damage red blood cells. Although sulfur is in the same chemical family as selenium, it cannot be substituted. Can you explain why? [Hint: Selenium is more easily oxidized than sulfur.] Is sulfur or selenium a better scavenger for oxygen when this gas is present in trace amounts?arrow_forwardMany radioactive isotopes are used in medicine for imaging and treatment purposes. The specific isotopes used depends on the particular organ or body system being studied (for example, Xe-133 is used to image lung function and blood flow.) Technetium-99m is a common radioactive isotope using for a variety of medical applications. It is produced from the decay of Molybdenum-99 and has a half-life of 6.01 hours. What are some of the applications of Tc-99m? While harder to access, another radioactive isotope of technetium, Tc-93, has a half-life of 2.73 hours. If it were easier to harvest, would this be a good substitute for Tc-99m? (remember to explain why for full credit) While Tc-99m has a half-life of 6.01 hours, its decay product has a half-life of 213,000 years. While the medical community considers it to be reasonably safe, within the limits of testing, does this make sense considering both chemical and biological principles? What are possible ways that you might deal with or…arrow_forward
- Some scientists have speculated that life forms elsewhere in the universe could be based on silicon, rather than carbon. What properties does silicon share with carbon that makes this more likely than say aluminum-based life or neon-based life?arrow_forwardThe decay of an isotope element follows a first-order reaction. Assuming that you start with 964 mg of the isotope element sample, after 39.4 hours of decay, you find that there is 275 mg of the sample remaining. What is the half-life time of this reaction?arrow_forwardWhy are the elements found in the I=P x A x T important in terms of them having an impact to our environment?arrow_forward
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