| A | B |
|---|
| purebred plant | always produces offspring with the same form trait as a parent |
| heredity | passing traits from parent to offspring |
| traits | different physical characteristics |
| genes | factors that control traits |
| alleles | different forms of a gene |
| dominant allele | trait always shows up |
| recessive allele | masked or covered up trait |
| hybrid | have two different alleles for the trait |
| Gregor Mendel | Studied math and science in 1851 |
| genetics | the scientific study of heredity |
