英语释义
1. any of the alternative forms of a gene that may occur at a given locus (see locus sense 3)
2. either of a pair of alternative Mendelian characters (see character entry 1 sense 1b(3)) (such as smooth and wrinkled seed in the pea)
3. any of the alternative forms of a gene that may occur at a given locus
4. either of a pair of alternative Mendelian characters (as ability versus inability to taste the chemical phenylthiocarbamide)