Question

Which of the following correctly points out the difference between microsporogenesis and megasporogenesis.

• A. In microsporogenesis, each of the cell of microspore tetrad goes on to form pollen grain, while in megasporogenesis only one of the cell of megespore tetrad form a megaspore.
• B. In microsporogenesis, the microspore mother cell is hapdoid while in megasporogenesis, the megaspore mother cell is diploid.
  
• C. The final stage of microsporogenesis is a 2-celled structure, while final stage of megasporogenesis is a 3- celled structure.
  
• D. None of the above.
  

Answer 1

The correct option is A

In microsporogenesis, each of the cell of microspore tetrad goes on to form pollen grain, while in megasporogenesis only one of the cell of megespore tetrad form a megaspore.

Microsporogenesis is the process by which pollen grains are produced from microspore mother cell (2n). Megasporogenesis is a process by which ovule is formed from a megespore mother cell (2n). In microsporgenesis, mother cell divides meiotically to form microspore tetrad. Each of the cell of microspore tetrad forms a pollen grain.
In megasporogenesis, megaspore mother cell forms a megaspore tetrad out of which, only one cell forms an ovule and the others are disintegrated.