Re: OT: Dynamic DNA structures and the formation of memory

John Larkin wrote:

On Sun, 05 May 2024 05:36:06 GMT, Jan Panteltje
<pNaonStpealmtje@yahoo.com> wrote:
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Dynamic DNA structures and the formation of memory
https://www.sciencedaily.com/releases/2024/05/240501125755.htm
Summary:
An international collaborative research team has discovered that
G-quadraplex DNA (G4-DNA) accumulates in neurons and dynamically
controls the activation and repression of genes underlying long-term
memory formation.
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I have always though that memory could be stored as DNA sequenxes...

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More likely RNA or some other protein.
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The oft-mocked Lamarckian concept, of genetic learning (not just
natural selection) is probably real, and some reverse transcription
does happen, namely that DNA is edited within the life of one
organism. But remembering where you left your glasses is probably
handled at a lower level than editing your chromosones.

But how can it be passed down as Lamarck thought, if the eggs in the
ovaries are formed early? If genetic memory could be passed down it
would be only from the father because sperm are formed recently. But the
sperm spawn from local cells. If DNA is edited to store memory then
would these changes be duplicated in all cells in all tissues? How else
would the changes get into sperm cells? How could they get into eggs?

We do have short-term memory too. We don't want to junk up our
chromosones remembering every grocery list.

We also have very-short-term instantaneous memory but we only use it to
speak and listen to language. You have to instantly remember the
syllable from 100ms ago. Chimps can look at a picture of a set of
objects that flashes on for a quarter second, and they remember where
everything was. We repurposed that kind of memory for language.


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