1 ) division of the vegetative cell in a grains accompanied by rapid degeneration of the generative cell , 2 ) simultaneous or independent mitosis of the nuclei in b grains , and 3 ) simultaneous mitosis of both the generative and vegetative nuclei in a grains following two successive cycles of dna synthesis in the generative nucleus , but only one in the vegetative nucleus ( c ) .
C0007590
division
C0026255
mitosis