Arthropods typically serve as which mechanism of transmission for viruses?
A) biological vector
B) fomite
C) mechanical vector
D) both as fomites and as vectors
Ans: A) biological vector
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Answer the question using the accompanying figure. The structure labeled “C” is a modified form of the ____
a. Golgi apparatus b. plasma membrane c. rough endoplasmic reticulum d. smooth endoplasmic reticulum e. nuclear membrane
How many amino acids are considered to be
essential because the human body cannot synthesize them? a. 2 b. 5 c. 8 d. 10 e. 12
All of the following can be due to a mutation in a gene for a gap junction protein except
a. Charcot-Marie-Tooth disease. b. deafness. c. cataracts. d. scurvy.
Which of the following bacteria is a common soil contaminant that may cause disease in humans and is a biological select agent?
A. Aspergillus oryzae B. Bacillus anthracis C. Cyanobacteria D. Lactoccocus cremoris E. Streptomyces scabies