The energy humans get from food originally comes from
A. Sugar
B. Meat
C. Vegetables
D. The Sun
Ans: D. The Sun
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Which element is not added routinely to standard parenteral nutrition formulas?
A. selenium B. zinc C. iron D. chromium E. copper
Transcription-level control mechanisms ____
A) ?determine the path by which mRNA can be translated into a polypeptide B) ?determine whether a particular mRNA is actually translated C) ?determine if a particular gene can be transcribed D) ?are driven by the interaction of tRNA and mRNA
The incidence of food allergies is estimated to be higher in children than adults
a. True b. False Indicate whether the statement is true or false
All of the following are true regarding niacin EXCEPT:
a. a deficiency results in pellagra. b. high doses lower HDL-cholesterol levels. c. high doses result in flushing. d. its precursor is tryptophan.