The isoelectric point of alanine is pH = 6.15. It is mixed with proline (pHCOOH = 2.0; pHNHâ‚‚ = 10.6), and the mixture is placed in an electric field at pH 6.15. Which statement is true?
a. Alanine will migrate towards the anode.
b. Proline will migrate towards the cathode.
c. Alanine and proline will not migrate.
d. The direction of migration cannot be determined.
