Interphase is defined as the stages preceding mitosis in the cell cycle. During interphase the cell will grow and replicate the genetic information it contains. Below is a representation of the stages of the eukaryotic cell cycle.This cycle has two fundamental parts: interphase which consists of G1, S, and G2, and occupies the majority of the cycle, and mitosis (M-Phase).

During G1 proteins, lipids and carbohydrates are synthesised in preparation for division, and the cell grows to the threshold size for division. The duration of this phase will depend on cell type.   S-phase is dedicated to the replication of DNA. Additionally some proteins required in the formation of the mitotic spindle and other structures in division are synthesized.   During G2 the cell continues to increase in mass.  Once again the duration of this phase can vary massively with cell type.   During M-phase the cell will undergo mitosis. The events during this phase are discussed in more detail in the following slides.

This site is primarily dedicated to mitosis - for more information on aspects of Interphase the following sites may be able to provide more general information: Basic information on DNA replication: http://esg-www.mit.edu:8001/esgbio/dogma/repl.html More replication.: http://www.ndsu.nodak.edu/instruct/mcclean/plsc431/eukarychrom/eukaryo2.htm Cell cycle tutorial: http://www.biology.arizona.edu/cell_bio/tutorials/cell_cycle/main.html

Click below to proceed to the next stage, INTERPHASE II, or go back to the overview page

Overview of Mitosis | Current Research | Publications | Vacancies | BS313 course info | Other sites