| A | B |
|---|
| heredity | Passing of traits from parent to offspring |
| alleles | different forms of a triat that a gene may have |
| genetics | the study of how traits are passed from generation to generation |
| hybrid | when an offspring displays traits from both parents |
| purebred | an organism that produces the same trait generation after generation |
| dominant | the trait that is expressed or hides the other trait |
| recessive | the trait that is not expressed or is hidden by the dominant trait |
| probability | the chance that something will happen |
| punnett square | a tool used to predict the alleles of offspring |
| genotype | the letter code of an offsprings traits |
| phenotype | the trait expressed in an organism |
| homozygous | when a genotype has two identical alleles |
| heterozygous | a gentype has a dominant and recessive trait |
| Gregor Mendel | the father of genetics |
| incomplete dominance | when offspring has a phenotype that is a combination of traits from both alleles |
| co-dominance | when an organism has a phenotype that expresses both traits from the parent |
| pedigree | a tool used to show the passing of traits through generations |
| universal donor | O- |
| universal recipient | AB+ |
