1. Once a heterocyst has formed it cannot revert to a vegetative cell . 2. Fission may occur spontaneously, in the course of the vegetative cell cycle. 3. Fission may occur as part of the normal vegetative cell cycle. 4. When stained with Gram stain, ascospores are gram-negative while vegetative cells are gram-positive. 5. When stained with Gram stain, ascospores appear Gram-negative, while vegetative cells appear Gram-positive. 6. Fission may occur spontaneously, as part of the vegetative cell cycle. 7. Vegetative cells in dry anthrax powder are generally dead and therefore harmless, experts said.8. Auxospores are involved in re-establishing the normal size in diatoms because successive vegetative cells . 9. Endospores possess five times more sulfur than vegetative cells . 10. A minimal amount of spore germination and vegetative cell growth are required for toxin production.
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