The phase change of an apical meristem from the juvenile to the mature vegetative phase is often revealed by
A) a change in the morphology of the leaves produced.
B) the initiation of secondary growth.
C) the formation of lateral roots.
D) a change in the orientation of preprophase bands and cytoplasmic microtubules in lateral meristems.
E) the activation of floral meristem identity genes.

Question

Quizplus · Accepted Answer

The phase change from the juvenile to the mature vegetative phase is often accompanied by a change in the morphology of the leaves produced by the apical meristem. Juvenile leaves are typically small, simple, and often exhibit different shapes and colors compared to mature leaves, which are larger, more complex, and have a specific pattern of venation. This change in leaf morphology is an important indicator of the transition from the juvenile to the mature vegetative phase in many plant species.

The Phase Change of an Apical Meristem from the Juvenile