For decades I have been doubting the concept of ' rubbish DNA ' , thinking that , at that stage , they just did not know its functions .
Concurrently I have been looking into 'Genetic Consciousness ' , ancestors , traits and 'memories ' ( Neurogenetic circuit - C 7 ; https://dreamflesh.com/essay/the-neuropharmacology-of-an-eight-circuit-brain/ )
So I did a check in on that ... using AI
Recent research indicates that what was once dismissed as 'junk DNA'—specifically non-coding DNA—plays a vital, active role in brain plasticity, allowing for the formation, stabilization, and extinction of fear-related memories. These non-coding regions are actively transcribed into long non-coding RNAs (lncRNAs) and can undergo structural changes (such as Z-DNA formation) that act as molecular switches for memory flexibility.
Impairments in these processes are linked to the inability to extinguish fear, a key feature of phobias and Post-Traumatic Stress Disorder (PTSD).
Here is how specific types of 'junk DNA' / non-coding RNA function in fear memories and phobias: