When Noah turned six, he developed a medical condition that required additional genetic testing. During the consultation, the specialist reviewed some of his family history and asked whether Daniel had ever undergone a bone marrow transplant or other major medical procedure. I remembered Daniel mentioning a complicated medical treatment years earlier.
I contacted Daniel for the first time in years. He confirmed that before our marriage, he had received a bone marrow transplant from his identical twin brother, Michael, following a serious illness. The doctor explained that this history could complicate certain DNA comparisons, particularly tests using blood samples. Suddenly, the original result needed another look.
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