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While male germ cells (XY) undergo cell cycle arrest, female germ cells (XX) must exit the mitotic cycle (cloning themselves) and enter the meiotic cycle (preparing for fertilization). Signaling Cascade: RSPO1 acts through the

The pathway works in tandem with Retinoic Acid (RA) . While RA is a known trigger for meiosis, the RSPO1 pathway ensures the germ cells are receptive and correctly programmed to respond to those triggers. 4. Scientific Significance 25641.rar

The study utilized mouse models to observe what happens when this signaling pathway is disrupted: Without sufficient RSPO1/ While male germ cells (XY) undergo cell cycle