Risperdal and Seizures. FDA ALERT [04/2005] Risperdal is a type of medicine called an atypical antipsychotic. FDA has found that older patients treated with atypical antipsychotics for dementia had a higher chance for death than patients who did not take the medicine. This is not an approved use.
Introduction. Chromosomal DNA replication occurs during a phase of the cell cycle known as the S phase. Although the length of the S phase can vary significantly between different cell types, several absolute controls exist that dictate when and how many times in a cell cycle DNA replication can occur.
Mitosis (M) encompasses just one step in the eukaryotic cell cycle: G1 > S > G2 > M > C. Cells grow during the dominant G1 phase. Replication of chromosomes occurs in the S phase. Preparation for mitosis takes place during G2 - replication of organelles and synthesis of microtubules. Interphase includes the combined stages G1, S, and G2.