8. Salmonella has genes that allow it to survive acidic conditions like the stomach acid and the inside of a macrophage (the human cell that tries to kill it). Would you predict that these genes would be on or off when Salmonella is in your aunt's potato salad on the 4th of July. a. On, because Salmonella has to be ready at any time for infection. b. Off, because the genes are not needed outside the host and it would be a waste of energy. c. On, because all genes are on all the time. d. Off, because it is in endospore form.
8. Salmonella has genes that allow it to survive acidic conditions like the stomach acid and the inside of a macrophage (the human cell that tries to kill it). Would you predict that these genes would be on or off when Salmonella is in your aunt's potato salad on the 4th of July. a. On, because Salmonella has to be ready at any time for infection. b. Off, because the genes are not needed outside the host and it would be a waste of energy. c. On, because all genes are on all the time. d. Off, because it is in endospore form.
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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Transcribed Image Text:8. Salmonella has genes that allow it to survive acidic conditions like the stomach acid and the inside of a
macrophage (the human cell that tries to kill it). Would you predict that these genes would be on or off
when Salmonella is in your aunt's potato salad on the 4th of July.
a. On, because Salmonella has to be ready at any time for infection.
b. Off, because the genes are not needed outside the host and it would be a waste of energy.
c. On, because all genes are on all the time.
d. Off, because it is in endospore form.
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