3. the d and y values of a b-strand composed of a amino acids will mainly occupy which quadrant in ramachandran plot? (dec 2017) (1) upper left (3) lower left (

3. The d and Y values of a B-strand composed of a amino acids will mainly occupy which quadrant in Ramachandran plot? (DEC 2017) (1) upper left (3) lower left (2) upper right (4) lower right