In the context of protein structure, what is the impact of tertiary structure formation on the primary structure of the individual polypeptide chains involved?

• A. The primary structure of each polypeptide chain is rearranged.
• B. The primary structure of each polypeptide chain remains unchanged.
• C. The primary structures combine to form a new sequence.
• D. The primary structure of one polypeptide chain replaces another.

Answer: (B)