| A | B |
|---|
| Cancer | Uncontrolled cell growth. |
| Carcinogen | Anything that causes cancer. |
| Cyclin | Proteins that regulate the cell cycle. |
| Cyclin-dependent Kinase | Enzymes that work with cyclin. |
| Stem Cell | Cells that can become any other type of cell. |
| Crossing Over | Part of one chromosome is switched with another. |
| Diploid | When there are two of each chromosomes. |
| Fertilization | When the sperm and egg "unite". |
| Gamete | Sex cells. |
| Haploid | When there is one of each chromosome. |
| Homologous chromosomes | Chromosomes that have same information. |
| Meiosis | Process of making sex cells. |
| Gene | Part of DNA that tells us about a trait. |
