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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 length of DNA molecule greatly exceeds the dimensions of the nucleus
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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
- The length of DNA molecule greatly exceeds the dimensions of the nucleus
- Ethanol is commercially produced through a particular species of:
- The Leydig cells found in the human body are the secretory source of
- Which of the following is the source of energy for muscle contraction?
- The concept that ‘population tends to increase geometrically while food supply
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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