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Mendelian Genetics
Vocab Review
| Term | Definition |
|---|---|
| Genetics | The scientific study of heredity or inheritance |
| Hereditary | Passing of gene/traits from parents to offspring |
| Trait | Specific characteristic that is controlled by genes |
| Gene | A segment of DNA on a chromosome that codes for a specific trait |
| Allele | The different forms of a gene; could be dominant or recessive |
| Phenotype | An organism's physical appearance, or visible traits. |
| Genotype | Letters that represent two alleles of a gene, AA, Aa, or aa |
| Dominant | An allele that is always expressed, represented by a CAPITAL letter, A |
| Recessive | An allele that is hidden when a dominant allele is present; Need two LOWERCASE letters to be expressed, aa |
| Homozygous | Having two identical alleles for a gene/trait, AA or aa |
| Heterozygous | Having two different alleles for a gene/trait, Aa |
| Homozygous dominant | Both alleles for a trait are the same and dominant, AA |
| Homozygous recessive | Both alleles for a trait are the same and recessive, aa |