| A | B |
|---|
| Cell membrane | Controls what enters and leaves the cell |
| cell wall | Outer layer that protects a plant cell |
| chloroplast | Structure that contains chlorophyll |
| chromosomes | Strands that copy themselves and split in cell division |
| cytoplasm | Jellylike substance in a cell |
| DNA | Chemical that directs life activities "blueprint of life." |
| dominant | Type of trait that gives an organism its appearance |
| gene | Segment of DNA that controls traits of offspring |
| meiosis | Cell division that produces reproductive cells |
| nucleus | Control center of the cell |
| nuclear membrane | Surrounds the nucleus and holds it together |
| Punnett square | Chart of possible offspring combination |
| recessive | Type of trait that is masked or covered |
| sexual reproduction | The joining of male and female reproductive cells |
| vacuole | Storage space in a cell |
| mitosis | Cell division that produces body cells |
| mitochondria | Structures that release stored energy |
