Originally posted by demigawd
To further clarify my remarks, Nathan Summers, while I understand your point that they're portrayed as being "the same person", that belief is illogical (Marvel's fault, not yours). Cable and Nate should have no more in common than you and your brother. In fact, they should have less in common, because Cable is the naturally conceived son of Cyclops and a clone of Jean Grey (and clones aren't truly identical) and Nate is the lab clone of Jean and Cyclops from an alternate universe. Genetically speaking, Nate Grey has more in common with Rachael than Cable. Either way, there's no logical way to support the belief that Nate and Cable are the same person. Each sperm has its own unique properties that create entirely different people. There's absolutely no way they came from the exactly same alternate reality drop of sperm, haha.They're less than twins.
Truth be told were this situation to be compared to real life they'd more than likely be biological twins, if anything.
" Identical twins have identical DNA but differing environmental influences throughout their lives affect which genes are switched on or off. This is called epigenetic modification. A study of 80 pairs of twins ranging in age from 3 to 74 showed that the youngest twins have relatively few epigenetic differences. The number of differences between identical twins increases with age. 50-year-old twins had over 3 times the epigenetic difference that the 3-year-old twins had. Twins who had spent their lives apart (such as those adopted by two different sets of parents at birth) had the greatest difference."
So, yes. From a logical stand point I understand were this the " REAL " world they should differ. But in a world were a man turns into a Hulking Green monster after being bombarded by Gamma Radiation; I'm inclined to stick with the fictional facts of the comics -- which is in fact what the discussion pertains to.