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.
The process of cell division and replication. In eukaryotic cells, the cell cycle has two periods: interphase, when the cell grows and duplicates its DNA (G1, S and G2 phases), and mitosis (M phase), when the cell splits into two daughter cells.