As Figure 2 illustrates, additional subdivisions can be detected in all of the regions on chromosome 12 under these conditions. The Human Genome Project Provides the Ultimate Chromosome Map ...

Scientists reveal new insights into the hidden processes driving human genetic variation with the first complete human DNA ...

Drets and Shaw then photographed and generated G-banding maps for each human chromosome. They found that each pair of chromosomes within a cell showed a similar G-banding pattern (Figure 1).

In particular, it explains that humans have one fewer chromosome pair in their cells than apes, due to a mutation found in chromosome number 2 that caused two chromosomes to fuse into one.