Botany-Growth Regulators
NEET Botany Growth Regulators MCQ Question
Type: MCQ-fact-Hard-Class 11
Which of the following plant growth regulators was identified and crystallized by Miller and his co-workers in 1955?
A
Kinetin
B
Gibberellic acid
C
Indole-3-acetic acid
D
Abscisic acid
Correct Answer
Option A
Detailed Explanation
Miller et al. (1955) identified and crystallized kinetin as the cytokinesis-promoting active substance. This contrasts with gibberellic acid, which is associated with the 'bakanae' disease of rice seedlings.
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