monohybrid
Technical term in genetics for a hybrid that is heterozygous with respect to a single gene.
In Mendel's experiments, the law of dominance was discovered from crosses of monohybrids.
Refers to a dihybrid, heterozygous for two genes, while 一遺伝子雑種 involves only one gene.
Compound of 一 (one), 遺伝子 (gene), and 雑種 (hybrid).