Which of the following organisms is used by molecular biologists to produce transgenic plants?
A. E. coli
B. Plasmid pSC101
C. Bacteriophage l
D. Agrobacterium tumefaciens
D
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The condition in the host that results from pathogenic parasitic organism growing and multiplying within or on the host is called
A. an infection. B. pathogenesis. C. an infectious disease. D. All of the choices are correct.
The phylum that includes snails, clams, oysters, and octopuses is the
A. Ectoprocta. B. Brachiopoda. C. Mollusca. D. Annelida. E. Phoronida.
Which of the following behaviors is associated with a high risk of HIV transmission?
a. unprotected sex (no condom used) b. hugging c. casual kissing d. sharing bathroom facilities e. sharing food or water
Which of the following statements is FALSE?
A) Antimicrobial therapy for hemodialysis-associated infections increases antibiotic resistance. B) S. aureus is differentiated from other mannitol+ cocci by the coagulase test. C) The M in MRSA stands for mannitol. D) The USA100 strain accounts for most hospital-acquired MRSA. E) The USA300 strain accounts for most community-acquired MRSA.