Indole-3-acetic acid is the most common naturally occurring plant hormone of _______ class
Correct Answer :
Auxin
Solution :
The correct option is Auxin.
Indole-3-acetic acid (IAA) is the most abundant and well-known naturally occurring plant hormone belonging to the auxin class. Auxins play a crucial role in regulating plant growth and development, including processes such as cell elongation, apical dominance, root initiation, and tropic responses (like phototropism and gravitropism).
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