Intressant sak man hittat när man nyligen jämfört genuttryck mellan ett groddjur och zebrafisk, under embryoutvecklingen:
Klein and his colleagues made a surprising discovery: Of the genes for proteins common to both the zebra fish and frogs they studied, only 30 percent were expressed in similar patterns with statistical significance. The animals expressed the rest in completely different ways, which suggested that the genes had adapted in their expression programs over the course of evolution. The conservation of the proteins at the sequence level seems to have no connection to the conservation of their expression in evolution.
“It came as a real shock,” Klein said. “It made us uncomfortable for a while.” But it also represented “another way evolution can tinker.”
Bland evolutionister har man ju länge viljat hävda att alla djur är så väldigt lika under embryoutvecklingen. Detta går definitivt lite stick i stäv med den uppfattningen. Visst har vi mycket gemensamt mellan alla olika djur - vi har trots allt samma skapare, men de individuella skillnaderna är ändå betydande.
