Question

Meiosis is best observed in dividing

• A. cells of apical meristem
• B. cells of lateral meristem
• C. microspores and anther wall
• D. microsporocytes.

Answer 1

The Correct Option is D

To determine where meiosis can best be observed, we need to understand the role of meiosis and where it typically occurs in plants. Meiosis is a type of cell division that results in four daughter cells, each with half the number of chromosomes of the parent cell. This process is crucial for the production of gametes, such as spores in plants.

Let's analyze the given options to identify where meiosis is most likely to occur:

1. Cells of Apical Meristem
   • The apical meristem is a region of actively dividing cells at the tips of roots and shoots that contributes to plant growth. It involves mitotic divisions rather than meiotic divisions.
2. Cells of Lateral Meristem
   • The lateral meristem is involved in increasing the girth of the plant, also through mitotic division, not meiosis.
3. Microspores and Anther Wall
   • Microspores are products of meiosis, not the site of meiosis itself. The anther wall contains tissues that support the development of these spores but does not undergo meiosis itself.
4. Microsporocytes
   • Microsporocytes are the precursor cells that undergo meiosis to form microspores. This is the site where meiosis is directly observable.

Based on these observations, the best location to observe meiosis in action is within microsporocytes, as this is where the cell division process occurs to produce microspores.

Therefore, the correct answer is microsporocytes.