Structure and Properties of Amino Acids

Q1: Which pair of amino acids absorbs the most UV light at 280 nm?

A Threonine & Histidine

B Trp & Tyrosine

C Cystein & Asparagine

D Phenylalnine & Proline

ANS:A - Threonine & Histidine

I think trp & tyrosine both are aromatic nonpolar molecules. That's why they absorb most UV light.



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