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# Regarding G.N. RAMACHANDRAN: 1. He was the founder of the ‘Madras school’ of conformational analysis of biopolymers. 2. His discovery of the triple helical structure of collagen published in Nature in 1954 3. His analysis of the allowed conformations of proteins through the use of the ‘Ramachandran plot’ rank among the most outstanding contributions in structural biology. Regarding 1,2 and 3:

( a ) 2 is incorrect but 1 and 3 are correct
( b ) 3 is incorrect; 1 and 2 are correct
( c ) 1 is incorrect but 2 and 3 are correct
( d ) All are correct

G.N. RAMACHANDRAN, an outstanding figure in the field of protein structure, was the founder of the ‘Madras school’ of conformational analysis of biopolymers. His discovery of the triple helical structure of collagen published in Nature in 1954 and his analysis of the allowed conformations of proteins through the use of the ‘Ramachandran plot’ rank among the most outstanding contributions in structural biology.