Generally speaking, the DNA sequences of introns evolverelatively rapidly, and are not well conserved. Nevertheless, it isstill possible that the existence and the location of an intron mayhave been conserved, that is whether an intron has existed at thatexact location in that gene over a long period of evolutionaryhistory. How (specifically) would you go about determining whetheror not the existence of a particular intron has been conserved inevolution? Would you focus on the alignment of protein sequences,or DNA sequences, or both, or something else? Why?