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Railways Sample Paper RRB (Group D) Sample Test Paper-2

  • question_answer
    Which one of the following vitamins helps in clotting of blood?

    A)  Vitamin-A        

    B)  Vitamin-\[{{B}_{6}}\]

    C)  Vitamin-D                    

    D)  Vitamin-K

    Correct Answer: D

    Solution :

    [d] Vitamin-K adds in blood clotting. Vitamin-K acts as an essential cofactor for factor-II, VII, IX, X and also for proteins Z, C and S.


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