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12th Class Chemistry Biomolecules / जैव-अणु Question Bank MCQs - Biomolecules

  • question_answer
    Match the following structure given in the Column I with their names specified in Column II and select the option from the codes given below.
    Column-I Column-II
    A. 1. Primary structure
    B. 2. Secondary structure
    C. 3. Tertiary structure
    D. 4. Quaternary structure

    A) A – 1    B – 3    C – 2    D – 4

    B) A – 2    B – 3    C – 1    D – 4

    C) A – 1    B – 2    C – 3    D – 4

    D) A – 2    B – 1    C – 3    D – 4

    Correct Answer: A

    Solution :

    [a] Structure A is primary structure. Here, proteins may have one or more polypeptide chains and it is the sequence of amino acid. Structure C is secondary structure. It refers to the shape in which a long polypeptide chain can exist. Structure B is tertiary structure. It represents overall folding of polypeptide chain. Structure D is quaternary structure. It composed of two or more polypeptide chains.


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