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From: Bill Sloman <bill.sloman@ieee.org>
Newsgroups: sci.electronics.design
Subject: Re: OT: Dynamic DNA structures and the formation of memory
Date: Mon, 13 May 2024 12:39:15 +1000
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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