Microbiology : Introduction - Access
12th Edition
ISBN: 9780133905526
Author: Tortora
Publisher: PEARSON
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Textbook Question
Chapter 8, Problem 3MCQ
Feedback inhibition differs from repression because feedback inhibition
- a. is less precise.
- b. is slower acting.
- c. stops the action of preexisting enzymes.
- d. stops the synthesis of new enzymes.
- e. all of the above
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d. give an example of an operon that is under negative control
e. repressor
f. give an example of a repressor molecule
g. activator
h. give an example of an activator
Two different types of gene regulatory elements are DNA sequence and protein-based. Which of the following describes them, respectively?
a.
one blocks translation, the other blocks transcription
b.
The first is an aporepressor, the second is a promoter
c.
The first is an enhancer, the second is a repressor
d.
The first is a activator, the second is a an attenuator
e.
one is an activist, the other is a protestor
Enhancers:
a.
are always located upstream of the TATA sequence
b.
are always within 200 bp of the TATA sequence
c.
are responsible for time and tissue specific transcription
d.
All the above are true.
Chapter 8 Solutions
Microbiology : Introduction - Access
Ch. 8 - Briefly describe the components of DNA, and...Ch. 8 - DRAW IT Identify and mark each of the following on...Ch. 8 - Match the following examples of mutagens. Column A...Ch. 8 - The following is a code for a strand of DNA. a....Ch. 8 - Identify when (before transcription, after...Ch. 8 - Which sequence is the best target for damage by UV...Ch. 8 - You are provided with cultures with the following...Ch. 8 - Why are mutation and recombination important in...Ch. 8 - NAME IT Normally a commensal in the human...Ch. 8 - Match the following terms to the definitions in...
Ch. 8 - Match the following terms to the definitions in...Ch. 8 - Feedback inhibition differs from repression...Ch. 8 - Bacteria can acquire antibiotic resistance by all...Ch. 8 - Suppose you inoculate three flasks of minimal...Ch. 8 - Plasmids differ from transposons in that plasmids...Ch. 8 - Mechanism by which the presence of glucose...Ch. 8 - The mechanism by which lactose controls the lac...Ch. 8 - Two offspring cells are most likely to inherit...Ch. 8 - Which of the following is not a method of...Ch. 8 - Nucleoside analogs and ionizing radiation are used...Ch. 8 - Replication of the E. coli chromosome takes 40 to...Ch. 8 - Pseudomonas has a plasmid containing the mer...Ch. 8 - Ciprofloxacin, erythromycin, and acyclovir are...Ch. 8 - HIV, the virus that causes AIDS, was isolated from...Ch. 8 - Human herpesvirus-8 (HHV-8) is common in parts of...
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