We know that some genes produce mRNAs (and then proteins) and some other genes produces just ncRNAs (non-coding RNA) that play regulatory roles (yes, I know that some ncRNAs play other roles, but let’s forget about them now). I want to know a bit more about this regulatory processes. Does every such certain gene produce one ncRNA that controls one other certain gene? Or maybe there is much more complex situation? For instance, can one gene produce ncRNA that controls other gene (How many, one? or maybe more?) producing other regulatory ncRNA(s) that from its side controls other gene and so on? This actually can make a very complex interlacement/interlacement/labyrinth, something like this: So, what can you tell me about this question?