Which of the following is NOT a way that bacteriophages aid pathogens in the human gut?
a. lysing pathogens before they can cross the mucous barrier
b. transferring antibiotic resistance genes by transduction
c. transferring antibiotic resistance genes by lysogeny
d. transferring virulence genes by lysogeny
Answer: A
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________ occurs when a chemical signal secreted by the roots of one plant blocks the germination of nearby seeds or inhibits the growth of a neighboring plant.
A. Etiolation B. The systemic response C. Allelopathy D. Nodulation E. Reduction
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____________________, such as ulcerative colitis and Crohn disease, develop when bacteria are able to breach the
barrier between the digestive system and the body. Indicate whether the statement is true or false.