This MCQ has been reconstructed from the short source fragment while preserving its intended meaning. The source identifies “Proventriculus and gizzard” as the correct response. The four options were kept within the same topic so the item reads like a standard competitive-exam MCQ.
In chickens, major protein digestion occurs mainly in which organs?
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Question context
This question is part of 🧬 Biochemistry within the broader 🧬 Medical Science subject and appears in the PPSC Punjab Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.