| A | B |
| Gregor Mendel | "Father of Modern Genetics" |
| Genetics | study of heredity |
| Heredity | passing of traits from parents to offspring |
| traits | characteristics passed through genes |
| genes | piece of DNA on a chromosome; come in pairs - one from each parent |
| alleles | different forms of genes, one-half of gene pair |
| dominant allele | carries a strong trait that ALWAYS shows up |
| recessive allele | carries a weak trait that is masked if paired with a dominant allele |
| purebreed | always produces offspring with the same traits as parent |
| hybrid | the cross-breeding of two purebreds (two different alleles for a trait) |
| self-pollination | produces purebreeds |
| cross-pollination | produces hybrids |
| filial | offspring (means "son" in Latin) |