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   talk.origins      Evolution versus creationism (sometimes      142,579 messages   

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   Message 141,111 of 142,579   
   RonO to All   
   More misinformation about junk DNA?   
   20 Jul 25 14:05:27   
   
   From: rokimoto557@gmail.com   
      
   https://phys.org/news/2025-07-reveals-hidden-regulatory-roles-junk.html   
      
   QUOTE:   
   Today, TEs make up nearly half of the human genome. While they were once   
   thought to serve no useful function, recent research has found that some   
   of them act like "genetic switches," controlling the activity of nearby   
   genes in specific cell types.   
   END QUOTE:   
      
   This was likely never true from McClintock's first papers on   
   transposable elements in the late 1930's.  She found them to regulate   
   gene expression, and the regulation could be developmentally regulated.   
   Transposons would become active at certain developmental stages of the   
   plant.   
      
   They were not considered to be part of junk DNA because they had no   
   effect on gene regulation.  They were considered to be junk because they   
   were obviously repetitive parasitic DNA sequences.  It would be the   
   organims that had to adapt to dealing with how they altered the   
   regulation of genes that they jumped into or around.  It has been known   
   for decades that some transposons are responsible for interesting   
   mutations.  Morgan's famous white eyed fly was due to a copia element   
   transposon.  This is just overhype of the recent findings.  My guess is   
   that the ID perps will use the stupid misinformation to claim that junk   
   DNA isn't junk, when they never wanted their designer to be responsible   
   for parasitic DNA sequences.  Why would a designer produce a parasitic   
   DNA parasite that is responsible for many de novo infant genetic defects   
   when they move around the genome?  Transposons do not account for over   
   half the human genome because they are good and useful.  It is because   
   we can't get rid of them, and they are effective parasites.   
      
   Ron Okimoto   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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