Quiz  /  NEET MCQ on Aba And Other Growth Regulators

  • 1. 
    Abscission zone can be induced for formation by

  • abscisic acid
  • cytokinins
  • gibberellins
  • auxins

  • 2. 
    Presence of this in the seed is linked with dormancy

  • abscisic acid
  • gibberellic acid
  • starch
  • ethylene

  • 3. 
    Abscisic acid treatment results in

  • root elongation
  • stomatal closure
  • stem elongation
  • leaf expansion

  • 4. 
    ABA contains

  • one asymmetric and two symmetric carbon atoms
  • one symmetric and two asymmetric carbon atoms
  • one asymmetric carbon atom
  • one symmetric carbon atom

  • 5. 
    Morphactins are

  • synthetic auxins
  • synthetic gibberellins
  • synthetic growth regulators
  • none of these

  • 6. 
    Dormin is a

  • abscisic acid
  • growth promoter
  • auxin
  • none of these

  • 7. 
    This is wound hormone

  • phyllocaline
  • auxin
  • hormone only
  • necrohormone

  • 8. 
    This is a plant hormone

  • acetylene
  • dormin
  • formalin
  • all of these

  • 9. 
    This is a naturally occurring growth inhibitor

  • NAA
  • IAA
  • GA
  • ABA

  • 10. 
    Abscisic acid regulates

  • leaf fall and dormancy
  • cell division
  • cell elongation and cell wall formation
  • shoot elongation
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