With my story, I want the genetic ties between two of my characters to be very obvious to the reader so they know that the reason the second one acts the way they do is because of the first one. I have the idea that writing certain paragraphs within each one's scenes exactly the same so the reader can make that connection manually. Would this be an appropriate way to approach this? If not, then could you describe any other way that might be better?
I noticed that my uncle probably also had Aspergers when he made a joke about incorrect use of inclusive disjunction in the exact same way that I used to do. The narration would need to note this kind of similatity explicitly to gain importance, but stating the following conclusion about the relation would leave no mystery, so at most it would be one of many guesses to leave the reader wondering.
Speaking for myself, unless it's Neil Gaiman levels of obvious, I would never pick up on it (unless I'm trying to analyze the story I guess).
I agree with FaceOff. It'd have to be hinted really hard for me to pick it up. That never works too well.