What are the Primary Sites of Auxin (IAA) Production in Plants

Question

What are the primary sites of auxin (IAA) production in plants?
A) shoot apical meristem and young leaves
B) roots
C) seeds
D) ripening fruits

Accepted Answer

Auxin (IAA) is primarily produced in the shoot apical meristem and young leaves, where it plays a crucial role in regulating plant growth and development by promoting cell elongation.