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Which of the following inhibits the growth of lateral auxillary buds?
Options
(a) auxin
(b) ethylene
(c) cytokinin
(d) gibberellin
Correct Answer:
auxin
Explanation:
Apical dominance is the phenomenon of suppression of growth in nearby lateral buds by the presence of apical bud. Removal of apical bud causes sprouting of lateral buds. However, if a paste of auxin is painted on the cut end of the decapitated shoot, the lateral bud remain inhibited, as if the apical bud is present. It clearly indicates that it is the auxin which is responsible for apical dominance.
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Topics: Plant Growth and Development
(126)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In a population of species, in some plants the style is shorter. But in some
- Which of the following options correctly represents the lung conditions in
- In prokaryota ribosomes present is
- Autonomic nervous system affects
- An angiospermic plant has 24 chromosomes in microspore mother cell
Topics: Plant Growth and Development (126)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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