This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition and Health, Subject name: Social & Preventive Medicine
Pulse proteins are deficient in? 
Select and explain. 
A. Methionine, B. Lysine, C. Threonine, D. All
A: Methionine
Answer: A: Methionine 
Explanation: Ans. is 'a' i.e., Methionine Supplementary action of proteinso Cereals are deficient in essential amino acid Lysine & threonine,o Pulses are deficient in essential amino acid Methionine.o So if cereals are eaten with pulses, their proteins complement each other & provide a more balanced and complete protein intake.FoodDeficiencyCerealsWheatMaizePulsesSoyabeanLysine & threonineLysine & threonineTryptophan & lysineMethionine & cysteineMethionine