Biology
The only phytohormone which is a gas at ordinary temperature:
- Ethane
- Ethyl alcohol
- Ethylene
- Ethyne
Chemical Coordination in Plants
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Answer
Ethylene
Reason — Ethylene is the only hormone which is gas at ordinary temperature.
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The hormone which promotes the ripening of fruits is:
- Auxins
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- Cytokinins
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A growth inhibiting hormone in plants:
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- Indole-3 acetic acid
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The hormone which stimulates cell division:
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Development of fruits without fertilization is called:
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