Unaware of what her creations were doing in the outside world, Michelle continued to work in The Lab.  The most recent batch of subjects all seemed to be rejecting the mutations.  She expected that, by now, they would all have been returned to their families.  Another failure.  She looked through the microscope at the cells she had collected.  She seemed to be getting further and further from her goal.<br/><br/>She sighed and leaned back in her chair, staring at the equation on the white board wall in front of her.  There was something there...something missing, she knew it, but couldn't put a finger on it.  Why did some subjects accept the mutations and others reject it?  There just had to be something there!