Download App

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
“Dormin” is a
  • A
    Growth promotor
  • B
    Auxin
  • ✓
    Abscisic acid
  • D
    None of the above
✓

Answer

Correct option: C.
Abscisic acid
c
(c)Abscisic acid is also called stress hormone or dormin. $\lambda $ Eagle and Wareing $(1963) $ discovered another substance ‘Dormin’ from dormant buds of Acer (Birch) plants, capable of causing dormancy of seeds.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from STD 11 - 13. Plant growth and development→STD 11 - 13. Plant growth and development — all question types→BIOLOGY STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Diurnal rhythm of the body is maintained by:
→
Match the given below organelles with their function

$(A)$  Kreb's cycle $(i)$  Stalked particles of mitochondria
$(B)$  Photorespiration $(ii)$  Cytoplasm
$(C)$  Oxidative $(iii)$  Peroxisomesphosphorylation
$(D)$  Glycolysis $(iv)$  Inner surface of membrane of mitochondria

 

$A \ \        B\ \             C \ \            D$

→
Central nervous system is divided in frog in
→
Absorptive heterotrophic nutrition is exhibited by:
→
What is false for inspiration process?
→
Which of the following are plant growth promoters?
→
The yellow colour of urine of the vertebrates is due to
→
$DNA$ sequence is the basis of grouping organisms in
→
A system of classification in which a large number of traits are considered is
→
In which part of the following, the vomiting centre is situated
→