zygosity(redirected from Split (animal and plant breeding))
Also found in: Medical.
The genetic condition of a zygote, especially with respect to its being a homozygote or a heterozygote.
(Genetics) genetics the similarity or differences between DNA sequences on the chromosomes of a fertilized egg
zy•gos•i•ty(zaɪˈgɒs ɪ ti, zɪ-)
1. the characterization of a hereditary trait in an individual according to whether the gene pairs for the trait are homozygous or heterozygous.
2. the characterization of twins, triplets, etc., according to whether they are monozygotic or dizygotic.
[1945–50; probably derivative of -zygous (see heterozygous), on the model of viscous: viscosity, etc.]