Nester's Microbiology: A Human Perspective
9th Edition
ISBN: 9781259709999
Author: Denise G. Anderson Lecturer, Sarah Salm, Deborah Allen
Publisher: McGraw-Hill Education
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Chapter 7, Problem 1A
A graduate student is trying to identity the gene coding for an enzyme found in a bacterial species that degrades trinitrotoluene (TNT). The student is frustrated to find that the organism does not produce the enzyme when grown in nutrient broth, making it difficult to collect the mRNA needed to help identify the gene. What could the student do to potentially increase the amount of the desired enzyme?
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Respond to the following in a minimum of 175 words:
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Do the advantages of using this technology outweigh the disadvantages (or vice versa)? Explain your position.
You are studying the effect of directional selection on body height in three
populations (graphs a, b, and c below).
(a) What is the selection differential? Show your calculation. (2 pts)
(b) Which population has the highest narrow sense heritability for height?
Explain your answer. (2 pts)
(c) If you examined the offspring in the next generation in each population,
which population would have the highest mean height? Why? (2 pts)
(a)
Midoffspring height (average height of offspring)
Short
Short
Short
Short
(c)
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(b)
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Tall
Short
Tall
Short
Short
Tall
Midparent height
(average height of
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Mean of population = 65 inches
Mean of breading parents = 70 inches
Mean of population = 65 inches
Mean of breading parents = 70 inches
Chapter 7 Solutions
Nester's Microbiology: A Human Perspective
Ch. 7 - Explain what semiconservative means with respect...Ch. 7 -
2. What is an origin of replication?
Ch. 7 - Why are primers required in DNA replication but...Ch. 7 -
4. What is polycistronic mRNA?
Ch. 7 -
5. Explain why knowing the orientation of a...Ch. 7 - What is the function of a sigma factor?Ch. 7 - Prob. 7SACh. 7 - Explain how some bacteria sense the density of...Ch. 7 -
9. Compare and contrast regulation by a repressor...Ch. 7 - Prob. 10SA
Ch. 7 - All of the following are involved in transcription...Ch. 7 -
2. All of the following are involved in DNA...Ch. 7 - All of the following are directly involved in...Ch. 7 - Using the DNA strand shown here as a template,...Ch. 7 -
5. A ribosome binds to the following mRNA at the...Ch. 7 - Which of the following statements about gene...Ch. 7 -
7. An enzyme used to synthesize the amino acid...Ch. 7 -
8. Under which of the following conditions will...Ch. 7 -
9. All of the following are characteristics of...Ch. 7 - Which of the following statements is false? a) A...Ch. 7 - A graduate student is trying to identity the gene...Ch. 7 - To isolate eukaryotic mRNA from cell lysates, a...Ch. 7 - Prob. 1CTCh. 7 -
2. In a variation of the experiment in the...
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