Which of the following statements is false?
A) Some prophage genes can cause the transformation of a nonpathogenic bacterium into a form that causes human disease.
B) Sometimes an environmental signal can trigger a switchover from the lysogenic to the lytic cycle.
C) The lysogenic cycle always occurs inside of host cells.
D) The lysogenic cycle typically results in the rapid lysis of all infected cells.
Answer: D
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Probiotics are foods, like yogurt, or dietary supplements that contain living bacteria. Why would someone want to knowingly consume bacteria?
A. to populate their gut with "good" bacteria B. to reduce the ability of pathogens to populate the gut C. to reduce or eliminate gastrointestinal problems D. All of the answer options are correct.
What do sea squirts and mussels have in common?
a. both are in the same phylum. b. both have incurrent and excurrent siphons. c. both are covered in a tunic. d. both reproduce asexually. e. both attach to the substrate using the same materials.
Intact skin and body-cavity linings are the first barriers to invasion by pathogens
1.True 2.False
An establishment that provides acute care services to individuals who stay overnight on the premises.
A. Adverse effect. B. Anatomical site. C. Co-morbidity. D. Inpatient facility