A family-formation concept defining agreements and orders used to establish legal parentage in assisted reproduction arrangements. It governs consent, medical participation, and parentage adjudication through written instruments and court orders where required. It does not create parentage without required consent and adjudication steps and does not authorize medical procedures beyond agreed terms. It provides predictable allocation of parental status and responsibilities for children conceived through assisted reproduction. The concept is generally stable, though statutory requirements and recognition rules may evolve over time.

Principle

Genetic contribution by gamete provision is distinct from legal parentage unless law or a valid agreement assigns parental rights or responsibilities to the donor.

Demonstration

A woman donates eggs to a fertility clinic; those eggs are fertilized and transferred to an intended mother. The clinic requires a written donation agreement in which the donor relinquishes parental claims and consents to specified uses of her oocytes.

Misapplication

Assuming that every person who provides eggs is automatically a legal parent, and therefore imposing custody or child support obligations on a donor without applying the relevant statutory scheme or contract terms.

Consequence

When donor status and consent are properly documented and recognized, intended parents obtain clearer legal recognition and donors are shielded from parental obligations; conversely, ambiguity can lead to litigation over custody and parental status.

Reversal

A genetic contributor who retains or acquires legal parental status (for example, a donor who never executed a relinquishment and later asserts parental rights), inverting the usual separation between genetic origin and legal parentage.

Boundary

Covers provision of oocytes for assisted reproduction but does not by itself govern surrogacy arrangements, sperm donation, or postnatal adoption; enforceability of donor waivers and the extent of rights vary by jurisdiction.

Semantic Tension

Tension exists between treating the donor primarily as a medical/reproductive service provider and treating the donor as a person with potential parental claims; the terms "donor" and "parent" can conflict in social and legal contexts.

Synthesis

An egg donor is a person who supplies ova for assisted reproduction under a legal and medical framework that typically separates genetic contribution from parental status through consent, agreement, and statute, thereby enabling intended parents to assume legal parentage while limiting donors' parental obligations.