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STD 11 - 13. Plant growth and development — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 13. Plant growth and development1 Mark
MCQ
Choose the incorrect pair.
  • A
    Auxins - To grow
  • B
    Gibberellins - Gibberellafujikuroi
  • C
    Cytokinins- Herring sperm $DNA$
  • ✓
    Abscisic acid - Flowering hormone
✓

Answer

Correct option: D.
Abscisic acid - Flowering hormone
d
Abscisic acid is a naturally occurring growth inhibitor. It acts as a 'stress hormone'. It causes abscission of leaves and promotes senescence. It initiates flowering only in certain short day plants.

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