Question

Grains of major cereals and millets lack amino acid ______.

• A. Methionine and cysteine
• B. Methionine and lysine
• C. Tryptophan and cysteine
• D. Lysine and tryptophan

Answer 1

Answer: (D)

Lysine and tryptophan

D. Lysine and tryptophan

Solution : Major cereals lack the amino acids like lysine and tryptophan that are generally plentiful in the protein rich diets like legumes ( e.g., bean).

So the correct answer is "Lysine and tryptophan".