The important thing to realize about linkage is that it helps researchers identify the locations on chromosomes ... difference between the two is the definitive step in identifying the gene ...

As it turns out, the connections between genes, chromosomes, DNA, and heredity were not recognized until long after researchers caught their initial glimpse of chromosomes. The following sections ...

An article by UAB professor Joan-Ramon Daban analyzes in depth the physical problems associated with DNA ... of chromosomes.