| ⇦ | 
| ⇨ |
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: - During transcription, RNA polymerase holoenzyme binds to a gene promoter
- The product of which has been commercialised for lowering blood cholesterol
- Cell wall is absent in :
- The finch species of Galapagos Islands are grouped according to their food
- The UN conference of Parties on climate change in the year 2012 was held at:
Topics: Plant Growth and Development
(126)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- During transcription, RNA polymerase holoenzyme binds to a gene promoter
- The product of which has been commercialised for lowering blood cholesterol
- Cell wall is absent in :
- The finch species of Galapagos Islands are grouped according to their food
- The UN conference of Parties on climate change in the year 2012 was held at:
Topics: Plant Growth and Development (126)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply