| allele definitions |
| # | Definition | Sets |
| 1 | one of a number of different forms of a gene | 59 sets |
| 2 | the different forms of a gene | 42 sets |
| 3 | one of the alternative forms of a gene that governs a characteristic, such as hair color | 37 sets |
| 4 | one of two alternate forms of a gene that can have the same locus on homologous chromosomes and are responsible for alternative traits | 36 sets |
| 5 | version of a gene | 33 sets |
| 6 | an alternative form of a gene | 30 sets |
| 7 | different forms of a gene | 26 sets |
| 8 | alternative form of a gene | 25 sets |
| 9 | form of a gene | 22 sets |
| 10 | any of a set of possible forms of a gene | 19 sets |
| 11 | alternative forms of a gene for each variation of a trait of an organism | 14 sets |
| 12 | varying form of a gene | 12 sets |
| 13 | alternate forms of a gene | 9 sets |
| 14 | any of a set of possible forms of a gene. | 9 sets |
| 15 | different form of a gene | 9 sets |
| 16 | the different forms of a gene. | 8 sets |
| 17 | an alternate form that a gene may have for a single trait; can be dominant or recessive | 7 sets |
| 18 | alternate form of a gene | 7 sets |
| 19 | an alternative form of a gene. | 7 sets |
| 20 | one of a pair of genes that have the same position on homologous chromosomes | 6 sets |
| 21 | a different form of a gene | 6 sets |
| 22 | one form of a gene for a given trait | 6 sets |
| 23 | a form of a gene | 6 sets |
| 24 | one of two genes present at a specific locus | 5 sets |
| 25 | a different form a gene may have for a trait | 5 sets |
| 26 | one of the alternative forms of a gene that governs a characteristic such as hair color | 5 sets |
| 27 | different forms of genes | 5 sets |
| 28 | a version of a gene | 5 sets |
| 29 | different forms of the same trait | 5 sets |
| 30 | different versions of the same gene | 5 sets |
| 31 | an alternate form of a gene | 5 sets |
| 32 | alternative form of a single gene passed from generation to generation | 5 sets |
| 33 | one of two or more molecular forms of a gene that arise by mutation and specify slightly different versions of the same trait. | 5 sets |
| 34 | one member of a pair (or any of the series) of genes occupying a specific spot on a chromosome (called locus) that controls the same trait. | 4 sets |
| 35 | alternate form of a gene for a particular trait | 4 sets |
| 36 | the alternate form of a gene. | 4 sets |
| 37 | a variation/ alt. form of a gene | 4 sets |
| 38 | one of several possible forms of a gene | 4 sets |
| 39 | one of two or more alternative forms of a gene, each leading to a unique trait | 4 sets |
| 40 | versions of a gene | 4 sets |