In Turkey, child is one of the important complementary actors of the family. Therefore for most couples who cannot have children biologically, the best way to become a family is through adoption. The focus of this study is the couples who cannot have children and want child from their relatives group, especially from their siblings. The subject of the study has been discussed through two main arguments: The first is, with infertility enabling such movement of children, the main motivation behind wanting and giving children is being the unequal power relations between relatives. The other is the compelling effect of kinship in solving problems in contexts such as the continuation of marriage, continuity of lineage, transfer of inheritance. Following these arguments, the study consists of two parts. The first chapter deals specifically with the cultural prevalence of adoption, its functions, and discussions in kinship studies. In the second part, the adoption practice in Turkey is included on the basis of field data and the main motivation behind the adoption is clarified. The research data of the study, which was based on field research, were obtained by conducting in-depth interviews. People with a genetic relationship, adoptive parents and other family members are the key actors of the study. As a result, the social and religious emphasis of the kinship/lineage relationship in Turkey directs the preference of childless couples to sibling children, and the basic motivation for the family that gives their child is the economic conditions.

Lineage, kinship, virtual kinship, adoption, ancille.