Towards which electrode would an `alpha`-amino acid migrate in an electric field at
(i) `p H lt p I, (ii) p H gt p I and (iii) p H=p I ` ? Explain.

Explanation

To determine the migration of an alpha-amino acid in an electric field under different pH conditions relative to its isoelectric point (pI), we need to understand the charge state of the amino acid at various pH levels.

### Step-by-step Solution:

1. **Understanding the Structure of Alpha-Amino Acids:**
- Alpha-amino acids have both an amino group (-NH2 or -NH3+) and a carboxyl group (-COOH or -COO-). At physiological pH, they typically exist as zwitterions, where the amino group is positively charged and the carboxyl group is negatively charged.

2. **Defining Isoelectric Point (pI):**
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