Name two basic amino acids .

Explanation

To answer the question "Name two basic amino acids," we can follow these steps:

### Step 1: Understand the Definition of Basic Amino Acids
Basic amino acids are those that have side chains (R groups) that can accept protons (H+ ions) at physiological pH. This property makes them basic in nature.

### Step 2: Identify Common Basic Amino Acids
Among the 20 standard amino acids, some are classified as basic. The most commonly recognized basic amino acids are:
- Lysine
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