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Heredity & Genetics
| Defintion | Term |
|---|---|
| The passing of traits from parent to offspring | Heredity |
| A segment of DNA on a chromosome that codes for a specific trait | Gene |
| specific characteristic of an individual | Trait |
| An allele whose trait always shows up in the organism when the allele is present.-CAPITAL LETTER | dominant allele |
| An allele that is hidden whenever the dominant allele is present-LOWER CASE LETTER | Recessive allele |
| the different forms of a gene; could be dominant or recessive-represented with letters (Ex. Rr) | Allele |
| genetic makeup of an organism-genetic code | Genotype |
| physical appearance of an organism or visible traits. | Phenotype |
| having two different alleles (letters) for a trait (Hh) | Heterozygous |
| An organism that has two identical alleles (letters) for a trait (HH or hh) | Homozygous |
| Both alleles (letters) for a trait are the same and recessive (aa) | Homozygous Recessive |
| Both alleles (letters) for a trait are the same and dominant (AA) | Homozygous Dominant |