LIFE SCIENCES PAPER I(PART 'B'

• exposé

LIFE SCIENCES PAPER I(PART ‘B') 41. During protein synthesis, L-amino acid binds to t-RNA through 1. α-amino group. 2. hydrophobic side chain. 3. α–carboxyl group. 4. carboxyl group of the side chain. 42. The peptide bond is planar 1. due to restriction caused by rotation around cα–N bond 2. due to restriction around cα–c′ bond 3. due to delocalization of the lone pair of electrons of the nitrogen onto carbonyl oxygen 4.

• helix turn helix
• double helix
• coli cells
• mammalian cells through vesicle fusion
• activity at the apical meristem
• growth retardation of foliage
• apical meristem
• plant cell
• length of the fatty acid chains