To What Structural Feature Does the Term "Quaternary Structure" Refer

question 20

Multiple Choice

To what structural feature does the term "quaternary structure" refer?

• A) the sequence of amino acids in proteins
• B) the overall folding pattern of proteins
• C) the aggregation of polypeptides
• D) the conformation of local regions of polypeptides

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Definitions:

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Caffeine

A stimulant to the central nervous system that is the most widely consumed psychoactive substance in the world, commonly found in coffee, tea, soft drinks, and chocolate.

Melatonin

A hormone produced by the pineal gland in the brain, responsible for regulating sleep and wakefulness patterns.

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