Uttarakhand PMT Uttarakhand PMT Solved Paper-2008

  • question_answer
    Different colour of frog skin are controller by

    A)  hormones     

    B)  melanocytes     

    C)  nervous system

    D)  Both [a] and [c]

    Correct Answer: A

    Solution :

    Metachrosis is the condition of changing in skin colour which protect frog from enemies. In lower animals like amphibians  (frog), intermediate lobe of pituitary gland is well developed   which   secretes   melanocyte stimulating hormones. This hormone is responsible for metachrosis in lower animals. So, different colours of frog skin are controlled by hormones from intermediate lobe of pituitary gland.


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