VS.
""Jane is a chimera, a mixture of two individuals - non-identical twin sisters - whose cells intermingled in the womb and grew into a single body
If Jane is a mixture of herself and her sister, than any children born by her are certainly "biologically related". They may well display very unusual DNA traits which would not match the normal parent/child patterns, but this is so contradictory that I can't take anything else in the story serious.
Who trains these reporters anyway, Democrats?
They don't care about accuracy, as scores of stories have shown. They want fantastic headlines that they can partially support with vaguely worded essays.
It's far more incredible, and thus profitable, to splash "I'm not related to my birth-child" across the page than it is to note that "this woman's has a birth-child whose genetic test results would not indicate that it is a direct lineal descendant, if her DNA is taken from her blood rather than her organs."
Science ain't sexy enough for Journalism majors, so that have to ignore pesky little things like logic, factual headlines, or respecting both sides of a story.