How many dipeptides can be made using the 20 standard amino acids?
A) 20
B) 40
C) 200
D) 400

Name: How many dipeptides can be made using the 20 standard amino acids? A) 20 B) 40 C) 200 D) 400
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Question

Quizplus · Accepted Answer

A dipeptide consists of two amino acids linked together. Since there are 20 standard amino acids, the first position can be filled by any of the 20 amino acids, and the second position can also be filled by any of the 20 amino acids. Therefore, the total number of possible dipeptides is 20 x 20 = 400.

How Many Dipeptides Can Be Made Using the 20 Standard