The ...................... of a protein determines its function

Explanation

To answer the question "The ...................... of a protein determines its function", we need to fill in the blank with the appropriate term that relates to the relationship between the structure and function of proteins.

### Step-by-Step Solution:

1. **Understanding the Question**: The question is asking what aspect of a protein determines its function. This implies that there is a fundamental characteristic of proteins that dictates what they do in biological systems.

2. **Identifying Key Concepts**: In biology, it is well-established that the function of a protein is closely linked to its structure. Proteins are made up of long chains of amino acids, and the specific sequence of these amino acids (the primary structure) influences how the protein folds into its three-dimensional shape (the secondary and tertiary structures).

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