What is 2-celled stage in microsporogenesis ?
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The 2-celled stage refers to a specific stage in the development of a pollen grain, where the microspore has divided into two cells:
1. Vegetative cell (VC)
2. Generative cell (GC)
This stage occurs after the microspore tetrad has separated and the microspores have matured. The 2-celled stage is a critical point in pollen development, as it sets the stage for the formation of the male gametes (sperm cells) and the pollen tube.
During this stage:
– The vegetative cell grows and develops into the pollen tube
– The generative cell divides to form two sperm cells (male gametes)
The 2-celled stage is an important milestone in plant reproduction, as it ensures the proper development of the male reproductive cells necessary for fertilization.