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Arindam paul Asked a Question
September 21, 2020 5:10 pmpts 30 pts
  • IIT JAM
  • Biotechnology (BT)

The tetrapeptide gly-ala-ala-gly is a palindrome. how many such palindromic tetrapeptides can be formed from 20 different amino acids? (a) 20 (b) 4 440 (c) 202

The tetrapeptide Gly-Ala-Ala-Gly is a palindrome. How many such palindromic tetrapeptides can be formed from 20 different amino acids? (A) 20 (B) 4 440 (C) 202 (D) 220
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  • Abhijeet Gaurav Best Answer
    Answer is (C). First amino acid can take 20 as there are 20 types of Amino acids. Similarily 2nd Amino acids can take 20 types of Amino acids. But once you choose first and sec...
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  • Priyanshu kumar thankyou
    Option C is correct
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    Priyanshu kumar
    20^2 ways
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