Botany-Growth Regulators
NEET Botany Growth Regulators MCQ Question
Type: MCQ-conceptual-Easy-Class 11
Which of the following statements about plant growth regulators is correct?
A
Gibberellic acid is produced by a fungal pathogen and promotes abnormal growth in rice seedlings.
B
Kinetin is synthesized in the roots and primarily promotes root development.
C
Auxins are responsible for promoting cytokinesis and are not influenced by nutrient media.
D
The discovery of gibberellins was unrelated to any fungal pathogens.
Correct Answer
Option A
Detailed Explanation
Gibberellic acid, identified from the fungal pathogen Gibberella fujikuroi, is known to cause the 'bakanae' disease in rice seedlings, leading to abnormal growth, as stated in the NCERT context.
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