In Escherichia coli, if ?70 is not bound to RNA polymerase core enzyme, active transcription of the gene is not occurring.
Answer the following statement true (T) or false (F)
False
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Antimicrobial susceptibility testing should be performed when
a. a single bacterial species grows from any body site. b. an isolate has a predictable susceptibility profile to therapeutic drugs of choice. c. reliable standardized methods for testing a clinically significant isolate exist. d. administering intravenous or oral antibio-tics to treat an infection.
A researcher is investigating the morphology of complete flowers. Which of the following organs must his flowers contain?
A. calyx, corolla, receptacle, and carpels B. calyx, corolla, carpels, and ovules C. calyx, corolla, stamens, and anthers D. calyx, corolla, carpels, and pistils E. calyx, corolla, androecium, and gynoecium
Which subatomic particle contains the neutral charge?
a. Electron b. Proton c. Both the proton and neutron d. Neutron e. Both the neutron and electron
Approximately what percent of the water that
enters a plant is actually used by the plant for metabolism and other processes?
a. 2 b. 10 c. 25 d. 50 e. 90