Cell elongation in internodal regions of the green plants takes place due to :
Correct answer: C. Gibberellins
- A. Indole acetic acid
- B. Cytokinins
- C. Gibberellins
- D. Ethylene
Explanation
(c) : Gibberellins play a role in the elongation of internodes in 'rosette' plants. Before reproductive stage there is too much elongation of internodes but there is less leaf formation. An elongated internode without leaves in called a "bolt" like structure and the process is called "bolting" flowering takes place after bolting. Gibberellins induce cell division and cell elongation, when bolting takes place.
Last updated
Related questions
A bean seed contains all of the following EXCEPT:
A chemical believed to be involved in flowering is :
A few normal seedlings of tomato were kept in a dark room. After a few days, they were found to have become white-coloured like albinos. Which of the following terms will you use to describe them?
A narrow layer of thin-walled cells found between the phloem/bark and wood of a dicot is:
A pigment which absorbs red and farred light is :