| A | B |
| Interphase | Longest phase of cell cycle during which chromosomes are duplicated |
| Centromere | Point where sister chromatids are joined |
| Chromatin | Thin tangled bundle of DNA threads in nucleus during interphase |
| Anaphase | Third phase of mitosis where replicated chromosomes separate to ends of cell |
| Metaphase | Second phase of mitosis where homologous chromosomes are arranged in the middle |
| Prophase | First phase of mitosis during which the nuclear membrane disappears and chromatin forms visible chromosomes |
| Telophase | Final phase of mitosis during which new nuclear membranes form and cytokinesis begins |
| Haploid | Cell having one set of chromosomes (1n) |
| Meiosis | Reduction division that creates haploid cells (1n) or gametes |
| Variation | Difference between members of a population |