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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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