| Term | Definition |
| Nucleus | contain genetic materal,consists of nuclear pores and nuclear envelope |
| Lamina | The nuclear envelope is supported by an interior scaffolding of protein fibers (microfilaments) |
| Chromosomes | tightly coiled strands of DNA |
| Histones | Chromosomes wrap around this protien to regulate the genes |
| Kinetichore | lies ontop of centromere, spindle fibers attach and pull away chromotid |
| Chromatids | relicated pair of DNA |
| Centromere | point in middle where chromatid attach |
| Telomere | ends of chromosomes, repeals of single pattern AGGGTT(protects the DNA coding) |
| Nucleolus | sphirical site in the nucleus, Reservoirs of RNA and the site of ribosome synthesis |