is an operon?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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The pathogenic strain of the bacterium E. coli (0157:H7) has been shown to be responsible for lethal outbreaks
of food poisoning. Bacteria on contaminated food enters the stomach and travels to the large intestine where
it causes severe diarrhea. If it enters the bloodstream it causes hemolytic uremic syndrome which results in
severe anemia, kidney failure, and in some cases death.
The stomach is an extremely acidic environment and to survive the bacteria have a series of enzymes that they
produce to protect themselves. This acid stress response is mediated primarily through the gad operon.
What is an operon?
O a. A series of genes controlled by the same operator
O b. A series of genes on the same MRNA molecule
O C. A series of genes that all have the same function
O d. A series of genes all regulated by the same repressor
Transcribed Image Text:The pathogenic strain of the bacterium E. coli (0157:H7) has been shown to be responsible for lethal outbreaks of food poisoning. Bacteria on contaminated food enters the stomach and travels to the large intestine where it causes severe diarrhea. If it enters the bloodstream it causes hemolytic uremic syndrome which results in severe anemia, kidney failure, and in some cases death. The stomach is an extremely acidic environment and to survive the bacteria have a series of enzymes that they produce to protect themselves. This acid stress response is mediated primarily through the gad operon. What is an operon? O a. A series of genes controlled by the same operator O b. A series of genes on the same MRNA molecule O C. A series of genes that all have the same function O d. A series of genes all regulated by the same repressor
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