Question

Arrange the following stages of microsporogenesis in sequence:
A. Tetrad stage,
B. Microspore mother cell,
C. Formation of pollen grains,
D. Meiosis, E. Microspores. Choose the correct answer from the options given below:

• A. B, D, A, E, C
• B. A, B, C, D, E
• C. C, B, A, D, E
• D. D, A, B, E, C

Hint:

Microsporogenesis sequence is microspore mother cell \(\rightarrow\) meiosis \(\rightarrow\) tetrad \(\rightarrow\) microspores \(\rightarrow\) pollen grains.

Answer 1

The Correct Option is A

Concept:
Microsporogenesis is the process by which microspores are formed from microspore mother cells inside the anther.

Step 1: Start with microspore mother cell.
The process begins with a diploid microspore mother cell. \[ B=\text{Microspore mother cell} \]

Step 2: Meiosis occurs.
The microspore mother cell undergoes meiosis. \[ D=\text{Meiosis} \]

Step 3: Tetrad formation.
After meiosis, four haploid cells are formed together as a tetrad. \[ A=\text{Tetrad stage} \]

Step 4: Microspores are released.
The tetrad separates into individual microspores. \[ E=\text{Microspores} \]

Step 5: Pollen grains are formed.
Each microspore develops into a pollen grain. \[ C=\text{Formation of pollen grains} \] Therefore, the correct sequence is: \[ B,D,A,E,C \] \[ \therefore \text{Correct Answer is (A)} \]