Quantum Physics is my field of study. I would prefer a space with ample room to build my device. Why would you donate your DNA?
How? The more delicious question is when when it comes to realities, but I shan't lose focus of your original ask. In my world I discovered what I called the Lutece Tear — ripples in the fabric of space that separated worlds. I built a device that would open those tears to create portals and then moved as we pleased.
My brother and I were "murdered" for this technology. Thankfully, the idiot that tried to kill us merely transcended us to the quantum plane where we were able to move freely without the use of the device.
Unfortunately, I have seen what knowledge of other realities can do to a person. The corruption is deep for those that desire to harness that knowledge for power rather than for the sake of knowledge itself.