名詞 dihybrid:

1. a hybrid produced by parents that differ only at two gene loci that have two alleles each

di.hy.brid

n.Genetics （名詞）【遺傳學(xué)】
The hybrid of parents that differ at only two gene loci, for which each parent is homozygous with different alleles.
而性雜種：只有二對染色體遺傳基因的親體雜交，每個親體都是不同等位基因的結(jié)合體