Biochem Questions Ramachandran plot shows Rate of a protein folding vs. time Iso

Question

Biochem Questions

Ramachandran plot shows Rate of a protein folding vs. time Isoelectric point of a protein vs. pH of the solution Absorption of a protein vs. the wavelength of incident light and protein concentration Most likely values of tetrahedral angles (phi and psi) in a polypeptide chain Both a) and d) A double-stranded DNA melts (strands separate). What change in the DNA absorbance A_280 would you expect: Shift in the maximum of absorption spectrum to 280 nm Increase in A_260 Decrease in A_260 No change whatsoever "Hydrophobic interactions" Always involve lipids Are the hydrogen bonds Are the same as Wan-der-Waals interactions Are thermodynamically favorable interactions of hydrophobic molecules in a polar solvent Are all of the above

Explanation / Answer

(1) e . Both (a) and (d)

(2) Increase in absorbance

(3) These are thermodynamically favorable interactions of hydrophobic molecules in a polar solvent

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