immunology previous year paper, Exams of Immunology

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[This question paper contains 6 printed pages.] 999 Your Rall No. wc B.Se. (Hons.) / M1 c BIOCHEMISTRY — Paper XV (immunology) (Admissions of 2000 and onwards) Time; 3 hours Maximum Marks ; 60 ‘Write your Roll No. on the top immediately on receipt of this question paper.) Attempt five questions in ali, including Question No. 1, which is compulsory. 1. (a) Indicate whether each of the following statements is true or false. Defend your choice (Be brief). (i) T-cell epitopes tend to be accessible amino acid residues that can interact with the TCR. Gi) All lymphoid cells express antigen specific receptors on their membranes. (iii) Self-/non-self discrimination of the immune system is perfect. P.T.O.