Hello! 1. The problem statement, all variables and given/known data If a chemical is used to inhibit spindle formation, what phases would you not see [under a microscope]? 2. Possible answers Prophase Prometaphase Metaphase Anaphase Telophase 3. The attempt at a solution I figured prometaphase, metaphase and anaphase. I know some people don't use prometaphase, by this phase I don't mean prophase. Instead I mean the stage in which the connection of the micotubules with the kinetochores begins to occur, and there is the 'back and forth' movement to attempt to align the chromosomes along the metaphase plate (when this occurs it is obviously metaphase). However, apparently I'm wrong and prometaphase isn't one. There's supposed to be three answers. I guess the other is going to be telophase, but I can't see how prometaphase can be ruled out... Thanks in advance.