  The ultimate secret of all lives on earth is hidden in their genomes -- a
totality of DNA sequences. We currently know the whole genome sequence of many
organisms, while our understanding of the genome architecture on a systematic
level remains rudimentary. Applied category theory opens a promising way to
integrate the humongous amount of heterogeneous informations in genomics, to
advance our knowledge regarding genome organization, and to provide us with a
deep and holistic view of our own genomes. In this work we explain why applied
category theory carries such a hope, and we move on to show how it could
actually do so, albeit in baby steps. The manuscript intends to be readable to
both mathematicians and biologists, therefore no prior knowledge is required
from either side.
