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.
Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN:9781305073951
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Chapter42: Animal Development
Section: Chapter Questions
Problem 1CT: The rubella virus causes German measles. If a pregnant woman is is infected by the rubella virus...
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