histones form structural complexes with DNA. In the electron microscope, these can take the appearance of beads on a string.
Each of a pair of identical DNA molecules after DNA replication, joined at the centromere.
programmed cell death involving a cascade of specific cellular events leading to death and destruction of the cell
A protein responsible for interpreting growth and nutrient availability signals.
This tumor suppressor gene causes cell cycle arrest in G1, providing time for DNA repair. If repair is successful, cells re-enter the cycle. If unsuccessful, apoptosis
(cyclin dependent kinase, adds phosphate to a protein), along with cyclins, are major control switches for the cell cycle, causing the cell to move from G1 to S or G2 to M.
Maturation Promoting Factor) includes the CdK and cyclins that triggers progression through the cell cycle.
is a protein that binds to cyclin and cdk blocking entry into S phase.