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Prepare effectively with the latest Medical MCQs with answers and explanations for exams, interviews, and job tests. Our collection covers anatomy, physiology, biochemistry, pharmacology, pathology, microbiology, forensic medicine, community medicine, and clinical skills. These Medical multiple-choice questions are designed for students, medical aspirants, and professionals preparing for NTS, PPSC, FPSC, CSS, PMS, medical entrance exams, and recruitment assessments. Strengthen your medical knowledge, improve problem-solving skills, and score higher with our updated Medical MCQs.

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679. Quaternary structure of protein is_____________?

A. The arrangement sequence of amino acids in the polypeptide chain
B. Inter relation between amino acids in a single polypeptide chain
C. Inter relation of amino acids in 2 polypeptide chains
D. The inter relation and arrangement of polypeptides in a protein with more than 2 polypeptide chains
✅ The correct answer is option D. The inter relation and arrangement of polypeptides in a protein with more than 2 polypeptide chains.

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