| A | B |
| Heredity | The passing of traits from parent to offspring |
| Alleles | The different forms of a trait that make up a gene pair |
| Genetics | The study of how traits are inherited through the interactions of alleles |
| Hybrid | Receive different genetic info, or different alleles for a trait from each parent |
| Dominant | It dominated, or covered up, the short from |
| Recessive | The form that seemed to disappear |
| Punnett Square | A handy tool used to predict results |
| Genotype | Genetic makeup of an organism |
| Phenotype | The way an organism looks and behaves as a result of its genotype |
| Homozygous | An organism with two alleles that are the same |
| Heterozygous | An organism that has two different alleles |
| Incomplete dominance | When the offspring of two homozygous parents show an intermediate phenotype |
| Polygenic inheritance | A group of gene pairs acts together to produce a trait |
| Sex-linked gene | An allele on a sex chromosomes |
| Genetic Engineering | Experimenting with biological and chemical methods to change the arrangement of DNA that makes up a gene |