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

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 13. Plant growth and development1 Mark
MCQ
Specific property attributed to gibberellins is
  • A
    Shortening of genetically tall plants
  • ✓
    Elongation of genetically dwarf plant
  • C
    Promotion of rooting
  • D
    Yellowing of young leaves
✓

Answer

Correct option: B.
Elongation of genetically dwarf plant
b
(b) Gibberellins are weakly acidic hormones having gibbane ring structure which cause cell elongation of intact plants in general and increased internodal lenght of genetically dwarfed plants $(i.e., corn, pea)$  in particular.

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