44. aostridium botulinum is made virulent by incorporating prophage genes encodi

Question

44. aostridium botulinum is made virulent by incorporating prophage genes encoding the botulinum toxin. What term best describes this prooess? A) Lytic phase B) Budding C Adsorption D) Lysogenic conversion D Latent phase 45. Overuse and misuse of antibiotics accelerate the evolution of drug resistant bacterial cells Which of the following processes is most likely to explain the development of methicillin- resistant S aureus (MRSA) from a drug sensitive S aureus? A) Replication of chromosomal DNA B) Gain of Rplasmids C Translation of protein D) Binary fission E Building of thick cell wall 46·Which of the following is true of prions? A) They are comprised of nudeic acids B) They are capable of metabolism. O They have a cytoplasmic membrane. D) They respond to the environment. E)They are an infectious protein partide. 47. One possible means of transmission of cellular and acellular infectious agents is by parenteral transmission. Which of the following best describes thistype of transmission? A) Transmission of infectious agents from mother to child. Transmission of infectious agents from person to person via coughing. D) Transmission of infectious agents by touching a fomite. Transmission of infectious agents by human contact.

Explanation / Answer

44. D LYSOGENIC MEANS INTEGRATION IN HOST'S DNA

45. C IT SYNTHESISES PROTEINS THAT HYDROLYSE BETA LACTAMS

46. E THEY ARE INFECTIOUS PROTEINS

47. B

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