(B) In over $60\%$ of angiosperms,pollen grains are shed at the two-celled stage. These two cells are the vegetative cell and the generative cell. The

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One vegetative cell and one generative cell

(B) In over $60\%$ of angiosperms,pollen grains are shed at the two-celled stage. These two cells are the vegetative cell and the generative cell. The vegetative cell is bigger,has abundant food reserve,and a large irregularly shaped nucleus. The generative cell is small and floats in the cytoplasm of the vegetative cell.