Daniel Smith
Posts: 970
Joined: Sep. 2007
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| Quote (JAM @ Mar. 01 2008,22:10) | | Quote (Daniel Smith @ Mar. 01 2008,21:46) | | Quote (JAM @ Mar. 01 2008,11:18) | Schindewolf's hypothesis was about MORPHOLOGICAL saltation. Can't you read and comprehend the adjective CHROMOSOMAL?
Did Schindewolf even mention chromosomes in his Bib--er, book? |
Yes, in notes 21 and 22 on pages 349 and 352 where he speaks of Goldschmidt's Systemmutationen.
On page 352 he says: | Quote | This repatterning, or Systemmutation, is attributed to cytologically provable breaks in the chromosomes, which evoke inversions, duplications, and translocations. A single modification of an embryonic character produced in this way would then regulate a whole series of related ontogenetic processes, leading to a completely new developmental type.
(his emphasis) |
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Schindewolf was wrong.
The point you keep missing is that these karyotypically visible events (fission, fusion, inversion, translocation, etc.) can produce speciation with absolutely zero change in phenotype.
On the other hand, a single nucleotide substitution can cause massive phenotypic changes.
Can you manage to wrap your brain around that fundamental point? |
I'm aware of the former, but can you give me examples of the latter?
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"If we all worked on the assumption that what is accepted as true is really true, there would be little hope of advance." Orville Wright
"The presence or absence of a creative super-intelligence is unequivocally a scientific question." Richard Dawkins
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