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RAJASTHAN PMT Rajasthan - PMT Solved Paper-2004

  • question_answer
    When phloem is surrounded completely by xylem the vascular bundle is called:            

    A)              amphicribral                         

    B)              amphivasal

    C)              conjoint    

    D)                        collateral

    Correct Answer: A

    Solution :

    Amphicribral: (Hadrocentric) : The xylem is in the centre and completely surrounded by phloem e.g., Ferns. Amphivasal : (Leptocentric) : The xylem completely  surrounds  the  phloem e.g., Dracaena, Yucca.


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