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  • Question 1
    1 / -0

    Which of the following statement about plant hormones is not true?

  • Question 2
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    Choose the correct answer from the alternatives given.
    Plant hormones

  • Question 3
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    The term "grey matter" refers to

  • Question 4
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    Hormone involved in phototropism is ____________.

  • Question 5
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    Charles Darwin and his son Francis experimented with the phototropism of grass seedlings by placing a metal foil blindfold over different parts of the seedling's coleoptile. A simplified version of their results is shown in the above image. Which of the following statements best explains their results?

  • Question 6
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    Find the odd man out:

  • Question 7
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    Match the following.

    A.IAA(i)Herring sperm DNA
    B.ABA(ii)Bolting
    C.Ethylene(iii)Stomatal closure
    D.GA(iv)Weed-free lawns
    E.Cytokinins(v)Ripening of fruits

  • Question 8
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    The term synergistic action of hormones refers to

  • Question 9
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    Match column I with column II and select the correct option from the codes given below.

    Column I
    (Phytohormone)    		Column II
    (Plant part where it is synthesised)
    A.
    		IAA(i)Tissues undergoing senescence
    B.Cytokinins(ii)Shoot apices
    C.Ethylene(iii)Root apices

  • Question 10
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    Read the given statements and select the option that is/are incorrect ones.


    (i) Cytokinin is primarily concerned with cell division.
    (ii) $$C_2H_4$$ breaks seed and bud dormancy.
    (iii) ABA stimulates the opening of stomata.
    (iv) $$C_2H_4$$ initiates germination in peanut seeds, sprouting of potato tubers.
    (v) ABA is synergistic to GA.

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