Question 1
Which of the given amino acids will migrate towards the anode at pH 7?
Glycine: pI = 6.0
Lysine: pI = 9.7
◦ Glycine
◦ Lysine
◦ Both glycine and lysine
◦ Neither glycine nor lysine
◦ It is impossible to determine without more information.
Question 2
Which of the given amino acids will migrate towards the anode at pH 6?
Phenylalanine: pI = 5.5
Leucine: pI = 6
◦ Leucine
◦ Phenylalanine
◦ Both phenylalanine and leucine
◦ Neither phenylalanine nor leucine
◦ It is impossible to determine without more information.