(No chimeras is like taking a human base stock creature magically isolating how a dragon breaths fire or grows scales and using some of the dragon cells forcing a change in the Pearson. Its magic equivalent of taking two or three difrent colored play-dough mixing them together and getting something different it could be argued that creatures like minotaurs or hippogryphons or sphinxes are chimeras as they are multiple creatures in one form. So for example I take a human give the qualities of a wolf (ie werewolf) and gave it the limitless regenerative powers of a troll or flair lizard doing something like that unnaturally is making a chimera although there's good chance of rejection versus a werewolf naturally getting it on with a troll and getting same effect as what the alchemy got.)