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JAM



Posts: 503
Joined: July 2007

(Permalink) Posted: July 16 2008,23:52   

[quote=afarensis,July 16 2008,19:15]This looks interesting
Control of segment number in vertebrate embryos:
 
Quote
The vertebrate body axis is subdivided into repeated segments, best exemplified by the vertebrae that derive from embryonic somites. The number of somites is precisely defined for any given species...

Um...there's a slight problem there, as that claim is false.

It's false in fish:
http://www.nature.com/nature/journal/v183/n4672/abs/1831408b0.html

It's false in pigs:
http://www.genome.org/cgi/content/abstract/gr.6085507v1

It's false in people:
http://www3.interscience.wiley.com/journal....RETRY=0

  
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