| A | B |
| heredity | the passing of traits from parent to offspring |
| allele | the different forms a gene may have for a trait |
| genetics | the study of how traits are inherited |
| dominant | form of a trait that appears to mask another form of the same trait |
| recessive | form of a trait that seems to disappear in a population, but can reappear |
| Punnett square | tool used to predict results in Mendelian genetics |
| Gregor Mendel | father of genetics, Austrian monk who studied pea plants |
| pedigree | tool for tracing the occurrence of a trait in a family |
| purebred | organism that always produces the same traits in its offspring |
| imprinting | learned behavior - animal bond that happens shortly after birth with another animal |
| chromosome | cell structures found in the nucleus of the cell which contain your genes |
| carrier | individual who has inherited a trait but does not show it |
| purebred | offspring of two organisms whose traits have not been mixed |
| hybrid | offspring of two organisms with different traits |
| inherited trait | characteristic that is passed down from parent to offspring |
| instinct | inherited behavior that is done automatically and not learned |
| gene | a portion of a chromosome that contains chemical instructions for inherited traits |
| learned behavior | developed during the course of an animal's lifetime - something that must be taught |