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Cell Cycle and ...

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  • Question 1
    1 / -0

    The paradox of meiosis is 

  • Question 2
    1 / -0

    Find out the numnber of chromosomes and the amount of DNA in a spore mother cell of bryophytes in $$G_2$$ stage , if the spore contains $$5$$ chromosomes and $$5$$ picograms of DNA

  • Question 3
    1 / -0

    Which of the following statements are incorrect about meiosis ?
    (a) It yields four genetically identical cells
    (b) It involves two successive divisions without any DNA replication occurring between them.
    (c) Intrameiotic interphase involves replication of DNA and centrioles.
    (d) Meiosis -I results in the formation of two daughter cells each with haploids number of chromosomes and $$1C$$ DNA content 

  • Question 4
    1 / -0

    Match the following columns.

    Column - IColumn - II
    A.Initiation of spindle fibres formation1.Anaphase - I
    B.Synthesis of protein for replication2.Zygotene
    C.Action of endonuclease3.S - phase
    D.Movement of chromatids towards opposite poles
    		4.Pachytene


    		5.Anaphase

  • Question 5
    1 / -0

    Match the following columns.

    Column IColumn II
    A.Phragmoplast1.Meiosis - II
    B.Equational division2.Meiosis - I
    C.Reductional division3.Zygotene - I
    D.Synaptonemal complex4.Persistent spindle

  • Question 6
    1 / -0

    When cell division fails after S - phase (DNA replication) in a diploid cell, the ploidy is

  • Question 7
    1 / -0

    The number of tetrads present in pachytene and Metaphase-I of Allium cepa respectively

  • Question 8
    1 / -0

    In a cell cycle, crossing over occurs at:

  • Question 9
    1 / -0

    What will be the amount of DNA in meiosis I products if a meiocyte contains 20 pg DNA in $$G_1$$ phase ?

  • Question 10
    1 / -0

    Prophase-I is subdivided into five phases based on?

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