… but you knew that already. Here’s an example of how a phenomenon known as exon shufflin’ can lead to evolutionary diversity (here involving SNAP25‘s exon 5a variant for early brain development while the exon 5b variant is used later in development) . Perhaps we owe our awesome, ahem, “higher” cognitive abilities to this ancient exon duplication … video below notwithstanding.
Genes 2 Brains 2 Mind 2 Me 