NEET AIPMT SOLVED PAPER 2002

  • question_answer
                    Mitotic spindle is mainly composed of which proteins?                                                                  

    A)                 Actin      

    B)                 Myosin

    C)                 Actomyosin        

    D)                 Myoglobin

    Correct Answer: A

    Solution :

                    Spindles formed during mitosis and meiosis are nothing but micro-tubule complex. Micro-tubules are made up of small units of tubulin which has an amino acid composition similar to actin.                 Myosin: A protein that makes up the thick myofilaments in muscle fibre.                 Actomyosin: Complex formed when the pure proteins actin and myocin are mixed.                 Myoglobin: Conjugated protein of vertebrate's striated and cardiac muscle fibres.


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