When a foal is born homozygous for a recessive genetic condition, it means they inherited two copies of the mutated gene, which can result in the development of a genetic disorder, often leading to severe health issues or even death depending on the specific condition, like in the case of "Lethal White Overo" where a homozygous foal with the Overo gene will likely be born with severe intestinal malformations and die shortly after birth; responsible breeders typically conduct genetic testing to avoid such scenarios |