Four of the five answers listed below are components of a nucleotide. Select the exception
a. pentose sugar
b. amino acid
c. cytosine
d. phosphate group
e. adenine
B
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Consider an antibacterial drug. In which of the following cases would the action of the drug be considered primarily bacteriostatic?
A. The MLC is 10-20 times higher than the MIC. B. The MLC is 2-4 times higher than the MIC. C. The MLC is lower than the MIC. D. The minimal lethal concentration (MLC) is equal to the minimal inhibitory concentration (MIC).
One of the ways agricultural production of such fruits as tomatoes or cucumbers can be increased significantly is to grow them in:
A. soils rich in magnesium. B. soils rich in nitrogen. C. greenhouses supplied with extra carbon dioxide. D. greenhouses with extra oxygen. E. None of these is true.
The FOXP2 sequences of mice were most different from those of
A. gorillas. B. chimpanzees. C. rhesus monkeys. D. All had the same number of changes from the mouse sequence. E. humans.
Active transport may be described as all of the following EXCEPT
a. is concerned with establishing the resting potential of a neuron. b. counters the process of diffusion. c. allows transport of atoms across the plasma membrane of the neuron against the concentration gradient. d. uses energy to power transport. e. physically blocking transport.