| A | B |
|---|
| DNA | The genetic material that makes up all organisms. |
| Chromosome | Individual structures in a cell's nucleus that contain hereditary material. |
| Gene | Section of DNA on a chromosome that contains instructions for 1 specific trait or job. |
| Base Pair | Individual rungs on the DNA ladder. |
| Homozygous | Two of the same type of gene (two dominant or two recessive). |
| Heterozygous | Two different type of genes (dominant and recessive). |
| Phenotype | The trait physically seen. |
| Genotype | Two letter gene combination. |
| Dominant | Trait that shows up when you have heterozygous genes (Capital and Lower Case Letters). |
| Recessive | Trait that does not show up when you have heterozygous genes (Capital and Lower Case Letters). |
