While some of our body’s cells divide in a matter of hours, the process of making sperm, meiosis, alone takes about 14 days from start to finish. And fully six of those days are spent in the stage known as the pachytene, when pairs of chromosomes from an individual’s mother and father align and connect.
Click here for original story, A critical enzyme for sperm formation could be a target for treating male infertility
Source: Phys.org