The idea of your DNA.
While the exact sequence of your DNA is entirely specific to you (probably), I’ve always thought that’s it strange that we consider it ours. You should hopefully know that you inherit half of your genetic material from your mother and half from your father, therefore your DNA is really just a mix of the DNA of someone else. In turn their DNA is half and half from their parents (interestingly enough however your DNA is not necessarily a quarter of your grandparent’s DNA, it could in fact be that you are genetically the child of say your grandfather and your mother, it’s unlikely though). So can we really say that we own our DNA? The way I see it is really just that we belong to our genetics rather than the reverse.