Localization of PRMT7 protein in human IVF embryos of the control, developmentally arrested, and blastocyst embryos (A) Embryos were labeled with DAPI and anti-PRMT7. The images shown here are representative images from about 50 independent replicates of embryos in the control, developmentally arrested and blastula. Scale bar: 50 μm. (B) Quantitative comparison of the PRMT7 protein levels in human IVF embryos of the control group (the polyspermic embryos), developmentally arrested group, and blastocyst group. Data are presented as the mean ±SD. ***P < 0.001.