ABSTRACT
In this chapter we deal with a different kind of motif or pattern: one that is defined by merely its composition and not the order in which they appear in the data. For example, consider two chromosomes in different organisms. We study gene orders in a section of the chromosomes of two organisms as shown below:
s1 = . . . g1 g2 g3 g4 g5 g6 g7 . . .
