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NEET Biology Anatomy of Flowering Plants Question Bank Self Evaluation Test - Anatomy of Flowering Plants

  • question_answer
    A dendrochronologist observed total 22 ring of spring wood and autumn wood in a dicot stem in 1998. How many annual rings will be observed by him in 2007?

    A) 21                                

    B) 25

    C) 20                    

    D)        30

    Correct Answer: C

    Solution :

    [c] In 1998, 22 rings are observed which means 11 rings of spring wood and 11 of autumn wood i.e., 11 annual rings are there. From 1998 to 2007 in 9 years, 9 more annual rings are formed hence, total number of annual rings in 2007 will be 11+9-20.


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