| A | B |
|---|
| Allele | Alternative form of a gene |
| Dominant | The allele that is always expressed if it is present. Bigger, stronger. |
| Recessive | The allele that is only expressed if there are two recessive alleles present. Smaller, less evident. |
| Homozygous | When both alleles of a gene are the same. |
| Heterozygous | When the alleles of a gene are different. |
| Genotype | The letters that represent a trait. |
| Phenotype | The physical characteristics displayed by an organism. |
| Trait | Genetic information about an organism. |
| Chromosome | Carries genetic information. Half comes from mom and half comes from dad. DNA. |
| Gene | A section of a chromosome where a trait is found. |
