Alpha helix is stabilized by?: (A) Disulfide linkage, (B) Covalent bonding, (C) Hydrophobic interactions, (D) Hydrogen bonds
Answer is D. Secondary Structure includes * Alpha helix * Beta pleated sheet * Beta bend or turn * Alpha chain in collagen (not alpha helix) Structure Bonds Primary structure Covalent/amide/peptide bond Secondary structure Hydrogen bonds Teiary structure Disulphide, Hydrogen, Hydrophobic and Ionic bond Quaternary structure Hydrogen, hydrophobic and ionic bond