part of response to pheromone triggering conjugation with cellular fusion mitotic cell cycle G1 arrest in response to pheromone biological_process cell cycle arrest in response to pheromone The cell cycle regulatory process in which the mitotic cell cycle is halted during G1 as a result of a pheromone stimulus. An example of this process is found in Saccharomyces cerevisiae. GO:0000751 GO:0030571 negative regulation of mitotic cell cycle