How Many Different Kinds of Polypeptides, Each Composed of 12

question 45

Multiple Choice

How many different kinds of polypeptides, each composed of 12 amino acids, could be synthesized using the 20 common amino acids?

• A) 4¹²
• B) 12²⁰
• C) 240
• D) 20
• E) 20¹²

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