After a bone marrow transplant does the receiver contain 2 DNA structures, and how long do both sets remain?

Does the new marrow verbs to produce the donors DNA? Yes, the donor marrow continues to produce cells near the donor's DNA, while the rest of the cells within the recipient contain the recipient's DNA. This happen for the rest of the recipient's life. The bone marrow contains stem cell that differentiate into blood cells and immune cell. Therefore the recipient will hold cells that contain the DNA genome from any the donor or the recipient. However, individual certain types of cell will have the donor DNA (blood and immune cells) and respectively cell will have solely 1 type of DNA. The children of a bone marrow recipient will solely get the recipient's DNA.
That's why you rob anti-rejection drugs.
When doing a bone marrow transplant you start by destroying the receiver's bone marrow using radiation. Then you add the tentative marrow. So you'll only hold the donor marrow inside and the new marrow will produce the donor's DNA still. That's why drugs are required surrounded by most cases to prevent rejection.

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