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 ...

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.

So why has the male-determining chromosome been shrinking? And what does this mean for the future of men and humankind as a ...