clipka wrote:
> In case of a basic change of the genetic structure, like a different number of
> chromosomes, this appears quite amazing, because obviously it cannot evolve
> over time so (a) cannot play a role, and (b) seems unlikely due to the dramatic
> proportions of the change.

http://en.wikipedia.org/wiki/Down_syndrome

> So intially the 47-chromosome population must have been comparatively
> successful.

Or it's less hard to combine 48 with 46 than you might think. All the data 
is there, including the tollermerines (or however you spell it) in the middle.

-- 
   Darren New, San Diego CA, USA (PST)
   "We'd like you to back-port all the changes in 2.0
    back to version 1.0."
   "We've done that already. We call it 2.0."

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