| A | B |
| Traits | characteristics that are inherited |
| Heredity | passing on of characteristics from parents to offspring |
| Genetics | branch of biology that studies heredity |
| Genes | sections of DNA that code for a trait |
| Gametes | sex cells |
| Alleles | alternative forms of genes |
| Dominant Trait | trait that is seen more frequently. Upper case letters. |
| Recessive Trait | trait that is “hidden”. Lowercase letters |