Quiz  /  NEET MCQ on Gibberellin in Plants

  • 1. 
    This is not a function of gibberellins

  • promote dormancy
  • promote cell elongation
  • promote parthenocarpic fruit formation
  • promote elongation of internodes

  • 2. 
    Elongation or lengthening of rosette plants is obtained by treating it with

  • cytokinin
  • gibberellin
  • zeatin
  • auxin

  • 3. 
    Generally, translocation of gibberellins is non-polar occurring through

  • capillary rise
  • phloem
  • xylem
  • both xylem and phloem

  • 4. 
    The gibberellin involved in flowering is

  • GA1
  • GA3
  • GA4
  • GA9

  • 5. 
    Nullification of genetic dwarfism is possible by spraying with

  • zeatin
  • auxin
  • gibberellin
  • cytokinin

  • 6. 
    The hormone involved in the regulation of florigen synthesis is

  • zeatin
  • gibberellin
  • ethylene
  • cytokinin

  • 7. 
    Gibberellins found in the aleurone layer of barley increases the transcription of

  • lipase and cellulase
  • protease and amylase
  • protease and cellulase
  • lipase and protease

  • 8. 
    This bioassay is used to test the presence of gibberellins

  • dwarf pea elongation technique
  • chlorophyll preservation test
  • excised radish cotyledon enlargement test
  • rice seedling growth inhibition test

  • 9. 
    Gibberellins were named after a fungus known as

  • Gibberella acuminata
  • Gibberella africana
  • Gibberella fujikuroi
  • Gibberella gaditijirrii
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