How Many Different Combinations Are Possible for a Tetrapeptide Containing

question 28

Multiple Choice

How many different combinations are possible for a tetrapeptide containing two glycines (Gly,) one alanine (Ala,) and one phenylalanine (Phe) ?

• A) 3
• B) 6
• C) 12
• D) 24
• E) 36

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