Multiple Choice
Selenium is an ultratrace element that is essential for life. It is used in the synthesis of ________, which is ________.
A) selenocysteine; a lipid
B) cysteine; an amino acid
C) selenocysteine; an amino acid
D) selenocysteine; a fatty acid
E) selenothymine; a nucleic acid base
Correct Answer:

Verified
Correct Answer:
Verified
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