The physiological function of spermatogenesis in Caenorhabditis elegans, Drosophila melanogaster and mammals is to produce spermatozoa (In, haploid) that contain only half of the genetic material of ...

Male infertility is on the rise, with significant declines in sperm quantity and quality occurring across the human population worldwide in the past two decades. The reason for this is poorly ...

Evidence has led experts to believe that genetics may be accountable for the difficulties that a significant portion of couples face when trying to conceive a child. Because men are just as likely to ...

Changes in either chromosome structure or number can occur during cell division. Each human has 46 chromosomes, 22 pairs of autosomes and 1 pair of sex chromosomes (XX: female or XY: male). During ...

Germ cell fate decisions are poorly understood, despite their central role in reproduction. One fundamental question has been whether germ cells are regulated to enter the meiotic cell cycle (i.e., ...