| Term | Definition |
| mitosis | cell division making an exact copy of a cell |
| meiosis | cell division making sex cells |
| gamete | sex cell |
| homologous pair | two chromosome coding for the same traits (but not necessarily having the same alleles) |
| allele | possible information of a gene |
| sister chromatids | exact copies of a chromosome attached at the centromere |
| chromosome | a piece of DNA containing many genes and is wrapped around histone proteins |
| chromatin | loose strands of DNA |
| prophase | phase where chromosomes are copied and condensed, nuclear membrane is breaking apart |
| metaphase | chromosomes are lined up in the middle of the cell |
| anaphase | chromosomes are moving toward the poles |
| telophase | two new nuclei are reforming |
| cytokinesis | two new cells separate from each other |
| monoploid | having one set of chromosomes (one of each chromosome) |
| haploid | having half as many chromosomes as the parent cell |
| diploid | having two of each chromosome |
| centromere | center of chromosome, where sister chromatids attach |
| telomere | end tip of a chromosome |