| A | B |
|---|
| Heredity | Passing of traits from parent to offspring |
| Trait | Physical characteristics that can be passed on to offspring |
| Genetics | The scientific study of heredity |
| Purebred | An organism that always produces offspring with the same form of a trait as itself |
| Gene | Small lengths of DNA that control traits |
| Allele | Different forms of a gene |
| Recessive Allele | Allele that is masked when dominant allele is present |
| Dominant Allele | Allele whose trait appears when the allele is present |
| Hybrid | an organism with 2 different alleles for a trait |
| Punnett Square | Chart that shows all possible results of a cross between 2 parents |
| Phenotype | An organism's appearance/ visible traits |
| Genotype | the allele combination for a given trait |
| Homozygous | Having 2 of the same allele |
| Heterozygous | Having 2 different alleles |
| Fertilization | A process that occurs when sperm cell meets egg cell |
