Nucleic acids are ________ of ________.
A. monomers; monosaccharides
B. polymers; nucleotides
C. monomers; ATP
D. polymers; DNA
E. polymers; cAMP
Answer: B
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In HIV infection, reverse transcriptase
A. makes RNA from viral DNA. B. makes protein from viral DNA. C. makes protein from viral RNA. D. makes DNA from viral RNA.
At temperatures above 40 °C (104 °F) in the human body,
A. enzymatic reactions with substrates are more quickly catalyzed. B. enzymes denature and reaction rates decrease. C. protein flexibility is optimum and reaction rates increase. D. protein shape is rigid and reaction rates are constant.
Which of the following cells has the largest role and most widespread effect on immunity?
A) cytotoxic T cell B) B cell C) helper T cell D) APC
Which of the following veins is a superficial vein?
A. Ulnar vein B. Brachial vein C. Radial vein D. Basilic vein E. Subclavian vein