For the following amino acids select the INCORRECT alternative: (a) At pH = 4 all migrate towards the cathode except Asp. (b) At pH = 10 all migrate towards the anode. (c) The pI of phenylalanine (Phe) will be about 5.5. (d) The pl of aspartic acid (Asp) will be about 2.8. (e) At pH = 7 the amino acids Arg and Lys migrate towards the cathode and the rest to the anode.

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