| A | B |
|---|
| Allele | The different forms of a gene. You get one allele from each parent for the same gene. |
| Heterozygous | Having two different alleles for a trait. |
| Homozygous | Having two of the same alleles for a trait. |
| Genetics | The study of heredity. |
| Hybrid | An organism that has two different alleles for a trait. (Heterozygous) |
| Mutation | A change in a gene or chromosome. |
| Probability | How likely a particular event will occur. |
| Punnett Square | A chart that shows all the possible combinations of alleles that can result from a genetic cross. |
| Purebred | An organism that always produces offspring with the same form of a trait as the parent. (Homozygous) |
| Karyotype | A picture of all the chromosomes in a cell arranged in pairs |
| Pedigree | A diagram that shows the occurrence of a genetic trait in several generations of a family. |
| Genetic disorder | A disease or disorder that is inherited genetically |
