Mouse Born from Granulosa-Derived Egg (image) Cell Press Share Print E-Mail Caption This photo shows a mouse obtained from gPSC4-derived oocytes by IVM and IVF. The mouse is now about one year old. The gPSC4- mice have reproductive ability and produced 13 and 7 pups, respectively, after two matings. Credit Lin Liu Usage Restrictions Credit Required. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.