Biology 101 Cell Cycle
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Created by:
pkellygirl on March 10, 2011
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8 terms
Terms | Definitions |
|---|---|
 Histones | histones form structural complexes with DNA. In the electron microscope, these can take the appearance of beads on a string. |
| Chromatid | Each of a pair of identical DNA molecules after DNA replication, joined at the centromere. |
| Apoptosis | programmed cell death involving a cascade of specific cellular events leading to death and destruction of the cell |
| RB (Retinoblastoma) | A protein responsible for interpreting growth and nutrient availability signals. |
| P53 PROTEIN | 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 |
| Cdk | (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. |
| MPF | Maturation Promoting Factor) includes the CdK and cyclins that triggers progression through the cell cycle. |
| p27 | is a protein that binds to cyclin and cdk blocking entry into S phase. |
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