Identify A, B and X :-

 X contains two cells - A and B. B is bigger than A, it has abundant food reserve and large irregularly shaped nucleus. A is small and floats in the cytoplasm of B. It is spindle shaped with dense cytoplasm and nucleus.

 

     A

       B

    X

(1)

Vegetative cell

Generative cell

Pollen grain

(2)

Generative cell

Vegetative cell

Pollen grain

(3)

Generative cell

Vegetative cell

Anther

(4)  

Generative cell   

Vegetative cell   

Filament

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