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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
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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
- Fruit colour in squash is an example of:
- Which one of the following is the correct matching of the events occurring
- Following is involved in the catalysis of link reaction during aerobic respiration is
- If diploid number of chromosomes in a plant is 40, then the number of chromosomes
- Who among the following concluded that every cell comes from a pre existing
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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