Multiple choice

At their isoelectric point, amino acids

  1. move towards anode in electrophoresis

  2. move towards cathode in electrophoresis

  3. move either towards anode or cathode depending on their nature

  4. have zero mobility in electrophoresis
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Isoelectric pH of an amino acid is that pH at which it has no net charge. So, amino acids have zero mobility in electrophoresis at their isoelectric point.

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