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
Apical dominance is caused by
✓
Auxin
B
Cytokinin
C
Ethylene
D
Gibberellin
✓
Answer
Correct option: A.
Auxin
a Apical dominance is a condition in plants where the stem apex prevents the development of side shoots from lateral buds near the apex. The dominance is controlled by the presence of high concentration of plant hormone auxin at the apex, produced by the apical bud.
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