Homozygous Recessive

Homozygous recessive refers to a genetic condition where an organism carries two identical copies of a recessive allele at a given locus. In cannabis breeding, this state is significant because recessive traits—whether morphological, aromatic, or biochemical—only express when both parent chromosomes carry the recessive variant. Breeders working to stabilize or isolate specific phenotypic traits often select for homozygous recessive individuals across multiple generations. Understanding homozygosity is foundational to predictable breeding outcomes and strain stability.

Breeders pursue homozygous recessive lines to reliably produce offspring expressing targeted traits without phenotypic variation. Repeated selfing or targeted crossing of individuals displaying the desired recessive phenotype increases the likelihood of fixing these genetics into a stable breeding population.