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These figures show the four levels of protein structure: primary, secondary, tertiary, and quaternary structure. Which level of protein structure is characteristic of some, but not all, proteins?1. Secondary level of protein structure
2. Tertiary level of protein structure
3. Quaternary level of protein structure

Respuesta :

Answer:

3. Quaternary level of protein structure

Explanation:

The quaternary level of protein structure is exhibited by those proteins that have more than one polypeptide chain. The proteins that have two or more separate polypeptide chains are said to have multi subunits. These polypeptide chains of a protein may be identical or different from each other. The arrangement of these protein subunits represents the quaternary structure of these proteins. For example, hemoglobin is a protein that exhibits the quaternary level of protein structure.

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