After talking to a doctor familiar with rare medical conditions, she discovered she has two sets of DNA.
"Not only that, I’ve been told I have two immune systems and two bloodstreams."
Taylor has tetragametic chimerism. This happens when two separate eggs are fertilized by two different sperms, and then one of the embryos absorbs the other during early stages of development. People with this type of chimerism may have two blood-types, as Taylor does, or different eye colors.
