| A | B |
|---|
| alleles | different forms of the same gene |
| homozygous | Has two alleles that are the same |
| purebred | An organism with identical alleles for a particular trait |
| genotype | the genes an organism has |
| hybrid | An organism that has two different alleles for a particular trait |
| trait | a characteristic that is inherited |
| heterozygous | has two different alleles for the same gene |
| phenotype | observable characteristics of an organism's genotype |
| Punnett square | a diagram used to show all the possible allele combinations |
| pedigree | a record that shows the pattern of inheritance in a family |
| heredity | the passing of traits from parent to offspring |
| codominance | when both alleles are actively expressed; no dominant or recessive |
| recessive | the allele that is hidden when paired with a dominant gene |
| dominant | the allele that hides the affect of another gene |
| incomplete dominance | when two alleles are expressed in a blended appearance |
| Mendel | the father of modern genetics |
| Austria | Where Mendel lived |
| species | organisms that can mate and produce fertile offspring |
