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    4. Bioassay for Gibberellin MCQ - Practice Questions with Answers

    Bioassay for Gibberellin MCQ - Practice Questions with Answers

    Updated on Sep 18, 2023 18:34 AM

    Quick Facts

    • 8 Questions around this concept.

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    QuestionMEDIUM

    While performing an experiment, a student detached endosperms from embryos, sterilized and allowed them to remain in 1 ml of test solution for 1-2 days. What will be the likely outcome of this experiment?
     

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    Bioassay for gibberellin can be done by

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    In the dwarf pea bioassay, what is the purpose of applying GA solution to some seedlings?

     

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    What happens in the control experiment of the barley endosperm bioassay?

     

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    Bakanae disease or foolish seedling disease in rice caused by

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    Barley endosperm test is bioassay of

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    Concepts Covered - 1

    Bioassay of Gibberellins

    Dwarf pea bioassay

    • Seeds of dwarf peas are allowed to germinate till the formation of coleoptile. 
    • GA solution is applied to some seedlings. 
    • Others are kept as control. 
    • After 5 days, epicotyl length is measured. 
    • GA stimulates epicotyl growth with a concentration as low as 1 Nanogram.

    Barley endosperm bioassay

    • Endosperms are detached from embryos, sterilized and allowed to remain in 1 ml of test solution for 1-2 days. 
    • There is a build-up of reducing sugars. 
    • The content of reducing sugar is proportional to gibberellin concentration. 
    • Reduc­ing sugars are not formed in control experiment where endosperms are kept in plain water.
       

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    Bioassay of Gibberellins

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    Books

    Reference Books

    Bioassay of Gibberellins

    Elementary Biology Vol 1

    Page No. : U4-171

    Line : 28

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