Question

Which one of the following is surrounded by a callose wall?

• A. Male gamete
• B. Microspore mother cell
• C. Egg
• D. Pollen grain

Answer 1

The correct option is B

Microspore mother cell

The microspore mother cell consists of a callose wall inner to the cell wall. The microspore mother cell undergoes meiosis. It leads to the formation of the microspore tetrad. It is followed by the degeneration of the wall of microspore mother cells to separate pollen grains (microspores).