Q. Which one of the following is surrounded by a callose wall?
A) Microspore mother cell
B) Male gamete
C) Egg
D) Pollen grain
Explanation
The wall of the pollen mother cell (microspore mother cell) is deposited by callose $\beta$-1, 3-glucan).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.