Re: Another gem from the library...

[John M <***>]

Judith:
once a change occurs (e.g. by a symbiotic, or even
less intrinsic association) the changed unit cannot
act as it did before the change anymore. So do not
search for the yester day. Evolution is not
reversible, we cannot become australopiteci again. 

Please let me stop here, I am in a depression because
of the victimes of the post-Latrinal (Katrinal?) flood
and am in ire for the irresponsibility and
incompetence to blabbermouthingly 'recompensate' the
destroyed lives of people with some money. Is there
some political Viagra against political impotence?

Best wishes

John


--- Judith Rosen <***> wrote:

> I continue to do further research on the presence
> (as components of 
> living cells) of multiple organelles with their own
> genetic heritage-- 
> separate from the cell's nuclear DNA. So far, there
> are certain 
> patterns that are emerging. I suspect my father's
> musings were correct; 
> that mitochondria (and chloroplasts) were originally
> free-existing 
> organisms which somehow entered into the interior of
> other 
> free-existing organisms, without being consumed or
> consuming. Whether 
> it was a symbiotic association from the beginning or
> not will be 
> impossible to tell, but it surely is that situation
> now. In fact, none 
> of these parties could be free-existing anymore,
> particularly as 
> regards multi-cellular organisms. There has been too
> much migration of 
> DNA and functionality... one term that came up
> repeatedly is the term 
> "promiscuous DNA" which referred to DNA that
> migrated from organelles 
> to the nucleus of cells. I wonder; early organisms
> most likely did not 
> have DNA at all, but utilized other modes of
> "encoding" which are 
> likely still present in organisms today. Perhaps
> this kind of encoding 
> is the missing link in explaining protein folding?
> In any case, I tend 
> to think that early DNA was capable of passing
> around rather freely, 
> much like prion diseases do even now. There are many
> modalities for the 
> incursion of foreign genetic material and foreign
> everything else; in 
> some ways it's just an extension of being an open
> system which 
> interacts intimately with environment the way
> organisms do. Indeed, 
> organisms encode AND incorporate vast amounts of
> their environments 
> into their own organization, as it is. So this seems
> a likely avenue 
> for those evolutionary entailments my father wrote
> about.
> 
> Judith
> 
> 
> Web address: http://www.rosen-enterprises.com/
> BioTheory: An electronic journal of general science
> based on the Relational Complexity Paradigm