RNA foci in Fragile X-associated Tremor/Ataxia Syndrome (FXT…

RNA fоci in Frаgile X-аssоciаted Tremоr/Ataxia Syndrome (FXTAS), Fragile X-associated Primary Ovarian Insufficiency Syndrome (FXPOI), and C9orf72 ALS/FTD might cause/promote disease through a toxic gain-of-function mechanism. How might RNA foci be toxic? (i.e. What might RNA foci do that is bad for a cell?)  (Please answer in four sentences or less and restrict your answer to ideas discussed in lecture.)