The maternal relationship between Karin Doris Ingeborg Nordin and her DNA tested daughter NAS is confirmed by the direct inheritance path of autosomal DNA.
The segmental (via DNA segment triangulation) and total DNA shared between NAS and other confirmed descendants of
Per Estensson/
Brita Jonasdotter Hedman is consistent with the expected ranges for their respective relationships. Since NAS descends from Per Estensson/Brita Jonasdotter Hedman through Karin Doris Ingeborg Nordin, the presence of significant shared DNA between NAS and other known descendants of Per Estensson/Brita Jonasdotter Hedman validates the generational links along this maternal line.
This supports the conclusion that DNA was passed from MRCA couple Per Estensson/Brita Jonasdotter Hedman through Karin Doris Ingeborg Nordin to NAS, confirming this direct ancestral connection through multiple generations.