필수아미노산(essential amino acid)으로만 구성되어진 것은?
lysine - tyrosine - serine - glycine
methionine - cystine - valine - serine
histidine - valine - lysine - leucine
threonine - valine - lysine - alanine
필수아미노산(essential amino acid)으로만 구성되어진 것은?
A. lysine - tyrosine - serine - glycine
B. methionine - cystine - valine - serine
C. histidine - valine - lysine - leucine
D. threonine - valine - lysine - alanine