Man fails paternity test because genes in his saliva are different to those in sperm

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It is thought cells from a miscarried sibling were absorbed by the man while he was in the womb

A US man has failed a paternity test after doctors revealed his dead twin, whose DNA the man absorbed in the womb, is the genetic father of the child.

The 34-year-old man is the first ever reported case of a paternity test being fooled by a human chimera, someone with extra genes absorbed from a twin lost in early pregnancy.

Editor's Comment
Let's show compassion to baby Asli

Her story is heartbreaking not only because she is fighting for her life at such a tender age, but because her parents have spent months navigating a medical journey filled with uncertainty, delays, and rising fear.What began as something that seemed as simple as jaundice has escalated into a life-threatening condition that now requires an urgent liver transplant.For Asli’s parents, the reality is devastating. They are not asking for luxuries...

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