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Also called mitochondrial replacement or transfer, three-parent IVF is an intervention comprising two distinct procedures in which the genetic materials of three people-the DNA of the father and mother and the mitochondrial DNA of an egg donor-can be used to create a child.

The Human Fertilisation and Embryology Authority (HEFA) oversees the use of gametes and embryos in fertility treatment and research. It licenses fertility clinics and centres carrying out in vitro fertilisation (IVF), other assisted conception procedures and human embryo research.

The Genetics of a Donor Egg Because a donor egg won't share any of its genes with its intended mother, there's a chance the baby will not resemble its mother. However, if her partner's sperm was used, the baby may look like its father because they share the same genetics.

The procedure is often referred to as a “three-parent baby” technique or “three-person IVF” because, technically, the baby ends up with DNA from three people — the father, the mother, and an egg donor.

It's a fertility treatment that creates an embryo using the genetic (DNA) material from three people: the parents and an egg donor. During normal conception, a fertilized egg has a mix of nuclear DNA from both parents.

The procedure can be done using a couple's own eggs and sperm. Or IVF may involve eggs, sperm or embryos from a known or anonymous donor. In some cases, a gestational carrier — someone who has an embryo implanted in the uterus — might be used.

We regulate fertility clinics and projects involving research with human embryos. This involves licensing, inspections and setting standards – find out more about each on this page.

In any case, if the husband did not give his consent, he would have no responsibility for the child. Federal court Justice John Griffiths ordered that the woman could undergo IVF without her husband's consent because the Assisted Reproductive Treatment Act discriminated against her on the basis of her marital status.