In these cases, the spontaneous mutation of one of the paralogous genes would be sufficient to create a situation where gene function is no longer assured. Duplication of the gene therefore made the genome more fragile.
As I said, we just can’t get past spontaneous generation, can we..............................
19 posted on 02/13/2017 10:56:01 AM PST by PeterPrinciple
(Thinking Caps are no longer being issued but there must be a warehouse full of them somewhere.)