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

On 13/05/2024 11:30 am, John Larkin wrote:

On Sun, 12 May 2024 21:21:56 -0400, "Tom Del Rosso"
<fizzbintuesday@that-google-mail-domain.com> wrote:
 

John Larkin wrote:

On Sun, 05 May 2024 05:36:06 GMT, Jan Panteltje
<pNaonStpealmtje@yahoo.com> wrote:
>

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.
>
>
>
I have always though that memory could be stored as DNA sequenxes...

>
More likely RNA or some other protein.
>
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?
>

 If it is advantageous for a woman's life experiences to be passed onto
her children, nature will find a way.

That's why humans invented language - and, much later, writing.
John Larkin is fond of magical thinking, which is to say he doesn't seem to be able to think in any kind of useful way.
--
Bill Sloman, Sydney