A bacterial ________ is the nontranscribed region of the DNA to which RNA polymerase binds in order to initiate transcription.
A. initiator
B. operator
C. operon
D. promoter
Answer: D
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Brucella infections usually result in which type of bacteremia?
a. Transient b. Intermittent c. Continuous d. Spontaneous
Which of the following is not a camouflage device?
a. chromatophores b. iridophores c. thigmotaxis d. obliterative countershading
Cytokines released by white blood cells that activate T cells and B cells, provoke an inflammatory response, and induce fever are called
A. histamines. B. complement proteins. C. interleukins. D. interferons. E. epinephrines.
The definition of lysogeny is
A) phage DNA is incorporated into host cell DNA. B) lysis of the host cell due to a phage. C) the period during replication when virions are not present. D) when the burst time takes an unusually long time. E) attachment of a phage to a cell.