Q. Which one of the following acids is a derivative of carotenoids?
A) Indole-3-acetic acid
B) Gibberellic acid
C) Abscisic acid
D) Indole butyric acid
Explanation
[Solution from source] Abscisic acid is a sesquiterpene formed from the breakdown of carotenoids (xanthoxin pathway). IAA and IBA are indole compounds derived from tryptophan, and gibberellic acid is a diterpene not derived from carotenoids. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.