Can Chromosome Counts Change?

I think you proved his point, actually. Your second post was more aggravating than the first. It's like a second gene that provides a greater amount of a protein, thus changing a structure. The third even showed mutation which added no obvious function beyond further irritation, but might over time mutate further. A different deletion in the third post (such as the first letter) could have provided new function that did not previously exist.How you like them apples?