A protein molecule has at least 200 to 300 ....................... linkages

Explanation

To answer the question, "A protein molecule has at least 200 to 300 ....................... linkages," we need to understand the structure of proteins and the type of bonds that link amino acids together.

### Step-by-Step Solution:

1. **Understanding Proteins**:
- Proteins are macromolecules made up of long chains of amino acids. Each protein has a specific sequence of amino acids that determines its structure and function.

2. **Amino Acids Composition**:
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