Rice is a cereal crop which is having least amount of lysine and tryptophan. Lysine is an Alpha-amino acid that is used in the biosynthesis of Protein. Examples: Meat, Dairy products, and Pulses are rich in lysineTryptophan is also an Alpha-amino acid that is used in the biosynthesis of Protein. Examples: Milk, Canned tuna, oats, cheese are rich in tryptophan. Additional InformationCEREALS:Cereals are deficient in lysine, threonine, and tryptophan whereas legumes are deficient in methionine. Cereals are a rich source of carbohydrates, vitamin B group, and a few minerals like Fe, Cu, Mg, P, and Zn LEGUMES:Legumes are a great source of high-quality protein and lysine amino acid