However, while these reproductive technology methods create children that maintain a genetic link between the parents and their children, in some developed countries, sperms, eggs and wombs may be used from third parties who are not expected to play any role in the rearing of the children. In those countries, third party assistance is sometimes required by infertile heterosexual couples, but the technologies have also enabled same-sex couples and single persons to have children to whom they are biologically connected.
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