My word for the day was chimera. That is an organism which has at least two genetically distinct populations of cells. It was believed the most common example of that was when two non-identical eggs merged to form a mixed genetics organism. Twins are also frequently chimeras because their blood can become mixed in the womb.
DNA Double Take tells that the availability of personalized genome scanning has revealed many of us have multiple genomes. With the exception of the chimera example above, we begin life with a single genome, but life happens - mutations, and stranger things happen. Quite possibly your liver genome is different than your brain genome.
Females can absorb some of the genome of their children. I'll make a prediction - we will discover that viruses can also result in non-homogeneous genome changes.
Mmm. Now when we claim our DNA is responsible for our lives, we must make the DNA plural.