ДНК S04E69 - Выпуск 473. Дагестанская дочь русской матери?

A woman from Dagestan found out that her mother is actually her grandmother. According to the grandmother, her mother abandoned her when the girl was only 18 days old, but her other son assures that his mother personally insisted that the daughter-in-law leave, leaving her a newborn granddaughter. So what happened 41 years ago with Madinat's mom and who else will she find after a genetic examination?