試題詳解

30. Herbicides (e.g., "Roundup") inhibit biosynthesis of 'essential" amino acids because animals do not have enzymes of:
(A) photosynthesis,
(B) glyoxylate cycle,
(C) glutamine synthesis pathway,
(D) Phe, Val, Leu, Ile and His biosynthetic pathways,
(E) none of above.