Open Discussion on Confirmed Prediction of Common Descent

Dr. David Heddle - no fan of ID and no advocate of evolution - recently posted a comment at Telic Thoughts referring to a confirmed prediction of common descent. I asked him for a source and he kindly directed me to this site which also provided this paper, which described the fusing of two primate chromosones to form 1 human chromosone. This provides strong evidence of common descent, going from 24 primate chromosones to 23 human chromosones.

Being an engineer and not being a biologist/geneticist, some honest questions have come to my mind after reading through the references above:

1. Are the remaining 22 chromosones identical between humans and primates?
2. Are the experiment conditions listed in the paper comparable to "actual" conditions? [I'm still trudging my way through the paper, but I find reading biologist-ese difficult; I require a translator ;) ]

This an open invitation to civil discussion on the above references. Ad hominem comments are not welcome and will be deleted.

Side note: this appears to be along the lines of what Dr. John A. Davison is proposing, that macroevolution occured in the chromosones, not the genes.