Railways General Science & Technology Diseases Sample Paper Plant Diseases Sample Test Paper-33

  • question_answer
    'Witches Broom' of legumes is due to

    A)  Mycoplasma    

    B)  Bacterium

    C)  Fungus

    D)  Virus

    Correct Answer: A

    Solution :

    [a] Night blindness is medically known as Nyctalopiain which the rod cells in the retina gradually lose their ability to respond to the light. Vitamin-A deficiency in the diet of humans is one of the causes of night blindness.


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