alleryStart learning →Gibberellins are described as a group of about how many closely related hormones?
AAbout 25
BAbout 125
CAbout 200
DAbout 400
Answer & Solution
Correct answer: B. About 125
1. Gibberellins form a group of about 125 closely related plant hormones.
2. They stimulate shoot elongation, seed germination, and fruit and flower maturation.
3. They are synthesised in the root and stem apical meristems, young leaves and seed embryos.
4. The figure of almost 200 belongs to the known cytokinins, which is the trap for a reader mixing the two hormone counts.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 30 "Plant Form and Physiology", section 30.6 Plant Sensory Systems and Responses_
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