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Hormone involved in phototropism is
Options
(a) kinetin
(b) IAA
(c) gibberellins
(d) 2,4-D
Correct Answer:
IAA
Explanation:
Phototropism is the bending response of shoots towards the source of light. It is promoted by the growth hormone auxin (indole acetic acid) which is present at the shoot apex.
Related Questions: - The internal factor affecting transpiration is
- Transition state structure of the substrate formed during an enzymatic reaction is:
- Sound above what level is considered hazardous noise pollution?
- The natural cycles of carbon, oxygen, nitrogen, water and phosphorus, sulphur, etc
- Which one is linked to evolution
Topics: Plant Growth and Development
(126)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The internal factor affecting transpiration is
- Transition state structure of the substrate formed during an enzymatic reaction is:
- Sound above what level is considered hazardous noise pollution?
- The natural cycles of carbon, oxygen, nitrogen, water and phosphorus, sulphur, etc
- Which one is linked to evolution
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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