Identify the goals of the Lewis and Clark expedition. finding a waterway across the continent
to the Pacific Oceanlocating new ports for shippingsurveying lands for scientific and
mapmaking purposesscouting for new sites for military posts in
the war with Francebuilding friendly relations with the
American Indians in the region

to find whatever they were looking for

Explanation:

genetics is the study of how dna works, the methodologies defining the new recent technologies allow scientist to have a panoramic view of the entire dna landscape, especially how genomes interact with their environment, including off course, factors outside their organisms.

thus is very possible the existence of both scenarios, where populations of isolated individuals have different genetic traits, and share traits related to genetic mutation, due rats can easily travel overseas using human transport channels. so scientists could get a vast number of data, including human interaction, evolution of rodents, health development, spread of infections, development of new organisms, how genomes evolve in different environments and so on.