LPT-0025
QUESTION
The most critical amino acid in the diet of wool producing sheep is?
OPTIONS
(A) Leucine
(B) Cystine
(C) Isoleucine
(D) Valine
ANSWER
(B) Cystine
EXPLANATION
Wool keratin is rich in sulfur-containing amino acids, making cystine especially important for wool synthesis and growth. Leucine, isoleucine, and valine are essential branched-chain amino acids but are not the characteristic limiting amino acid emphasized for wool production. Therefore, option (B) is correct.
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