The brain region identified lighting up during an fMRI scan in a patient with obsessive-compulsive disorder is the anterior cingulate cortex. The anterior cingulate cortex is part of the limbic system and is responsible for the emotion formation, memory, processing, compulsions and obsessions, and others.
It would be the first choice :)
Because when replicating DNA, this process is called semi-conservative
Hope this helps :)
~His Cookie Monster
It is due to agitation of the heart. This is the result of a blow in the area directly over the heart.