A pathologist detects Negri bodies while examining a brain section taken at autopsy. What was the cause of death?
A) rabies
B) meningococcal meningitis
C) eastern equine encephalitis
D) Hansen's disease
E) poliomyelitis
A
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Regulatory transcription factors _____
A) influence the binding of sigma factor to DNA B) influence the assembly of the basal transcription complex C) influence the degree of unwinding of DNA at the promoter D) open the two strands of DNA so that RNA polymerase can begin transcription
The fact that the helixes of the DNA strand are arranged in opposite directions gives DNA its _____ characteristics
A. antiparallel B. complementary C. redundant D. water-soluble
A neuron sends information across a chemical synapse by
a. movement of sodium ions from the first cell through the membrane of the second. b. electrons from the first cell that induce permeability changes in the second. c. neurotransmitter molecules that penetrate into the second cell. d. fusion of the plasma membrane of the first cell with the membrane of the second. e. neurotransmitter molecules that bind to membrane receptors on the second cell.
Glycolysis reactions involve ____
a. aerobic metabolism b. phosphorylation reactions c. mitochondria d. Krebs cycle reactions
e. electron transport chain reactions