| A | B |
|---|
| Mitosis | The process in which the nucleus divides to form two identical nuclei |
| Chromosomes | Structures in the nucleus that contain DNA |
| Asexual reproduction | A new organism are produced from one parent |
| Sexual reproduction | A new organism is produced when sex cells from two parents combine |
| Sperm | Male sex cell |
| Egg | Female sex cell |
| Fertilization | The joining of an egg and sperm |
| Zygote | The cell that forms in fertilization |
| DNA | The master copy of an organism's information code |
| Gene | The section of DNA on a chromosome that directs the making of a specific protein |
| Mutation | Any permanent change in a gene or chromosome of a cell |
| Clone | An individual that is genetically identical to one of its parents |
