Which of the following may be a reason for bacteria not having nucleosomelike structures?
A. Bacteria need to respond quickly to the environment and therefore need ready access to the genome.
B. Cell division in bacteria occurs in as little as 15 minutes.
C. A much larger proportion of the bacterial chromosome codes for proteins.
D. Higher rates of metabolism in bacteria mean that a much larger proportion of the DNA is being transcribed or replicated at a given time.
E. All of these choices are correct.
E
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Which antimicrobial susceptibility testing method uses a series of plates with different antimi-crobial concentrations inoculated with multiple bacterial isolates per plate?
a. Agar dilution b. Automated broth dilution c. Disk Diffusion d. E-test
The constant region of a light chain is indicated by
a. A. b. B. c. C. d. D. e. E.
Semi-enclosed areas of the coastal ocean where seawater is diluted and partially mixed with freshwater coming from the land are referred to as
A) eddies. B) coastal reservoirs. C) tidal basins. D) estuaries.
Molecules of tRNA are
A) 75 to 90 nucleotides in length. B) single-stranded with secondary structure. C) cloverleaf in shape. D) synthesized with modified bases. E) All of these