Q. A leaf primordium grows into adult leaf lamina
A) At first by apical meristem and later largely by marginal meristems
B) By apical meristem
C) By lateral meristem
D) By marginal meristem
Explanation
The leaf primordium has an apical meristem at its tip, which becomes inactive at early stage of development. Further increase in length occurs by intercalary meristem. Simultaneously marginal meristem (cells of margin of leaf axis) divide and redivide to form leaf lamina.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.