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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 our society women are blamed for producing female children
- Enzymes differ from ordinary catalysts because enzymes consist of
- As compared to anaerobic respiration, the energy gained during aerobic
- Clitellum segment of earthworm constitues segments
- Animals and plants are best protected in
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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