PYQ Vault
EbooksTutor

Number of possible peptides from given amino acids

This type of question, asked 5 times: 24 Jan 2023, 29 Jan 2023, 1 Feb 2024, 2 Apr 2025, 24 Jan 2026 S2. All 5 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    24 Jan 2023

    149
    Total number of tripeptides possible by mixing of valine and proline is

  2. Question 2

    29 Jan 2023

    41
    Number of cyclic tripeptides formed with 2 amino acids AA and BB is:

    Tap an option to check your answer.

  3. Question 3

    1 Feb 2024

    143
    The number of tripeptides formed by three different amino acids using each amino acid once is _____ .

  4. Question 4

    2 Apr 2025

    119
    A tetrapeptide " xx " on complete hydrolysis produced glycine (Gly), alanine (Ala), valine (Val), leucine (Leu) in equimolar proportion each. The number of tetrapeptides (sequences) possible involving each of these amino acids is.

    Tap an option to check your answer.

  5. Question 5

    24 Jan 2026 S2

    28
    The number of possible tripeptides formed involving alanine (ala), glycine (gly) and valine (val), where no amino acid has been used more than once is :

    Tap an option to check your answer.