OpenStudy (anonymous):

Question: 1 of 10: A scientist observes an enzyme polypeptide chain arranged in spiral turns that rise upward and are held in place by hydrogen bonds. Which level of structural arrangement is s/he looking at? A. Tertiary B. Quaternary C. Secondary

4 years ago
OpenStudy (aaronq):

it's talking about the double helix

4 years ago
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