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Hypothetical plant hormones are
Options
(a) florigen
(b) vernalin
(c) florigen and vernalin
(d) auxin
Correct Answer:
florigen and vernalin
Explanation:
The commonly recognized classes of plant hormones are the auxins, gibberelins, cytokinins, abscisic acid, and ethylene, Circumstantial evidence suggest that flower initiation is controlled by hypothetical hormones called florigens, but these substances remain to be identified. Florigen means flower forming hormones. A German plant physiologist Georg Melchers had proposed the existence of a stimulus of vernalization and he termed it as vernalin. Vernalin has not been isolated so far so it still remains to be
Related Questions: - Which of the following is a group of rhizomes
- Which of the above said statements are correct about Norepinephrine?
- Which one of the following pairs, is not correctly matched?
- Which one of the following is a wrong statement regarding mutations?
- For germination of seed which light is necessary
Topics: Plant Growth and Development
(126)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which of the following is a group of rhizomes
- Which of the above said statements are correct about Norepinephrine?
- Which one of the following pairs, is not correctly matched?
- Which one of the following is a wrong statement regarding mutations?
- For germination of seed which light is necessary
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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