Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2008

  • question_answer
    Clamp connections' are observed in

    A)  Basidiomycetes              

    B)  Zygomycetes

    C)  Ascomycetes                   

    D)  Oomycetes

    Correct Answer: A

    Solution :

    'Clamp   connections'   are   observed   in               Basidiomycetes (club fungi). During nuclear         divisions of the dikaryotic cell, special structures               called the clamp connections are formed. These               clamp connections ensure that the sister nuclei of the dikaryon, at each division, separate into        daughter cells.             Torula stage of fungus is observed in          Zygomycetes. In Zygomycetes the zygospore     germinates to produce a hypha, the promycelium         with terminal sporangium.             In Oomycetes one of the flagellum is of tinsel        type and the other of whiplash type. The hyphal              wall chiefly consists of P glucans and cellulose and     not chitin. The mycelium is extensive and             coenocytic.             In Ascomycetes the spore of sexual stage                (meiospores) which are known as the ascospores            are  endogenous in origin. They are produced             within sac-like structures called asci which very in             shape.


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