| Type | MGI:General | Description | an increased number of megakaryocytes are found in the spleen and bone marrow of female mice the number of megakaryocytes found in a female sternum bone marrow compartment is 65 compared to 30-35 in transgenic male mice or non-transgenic female mice pregnant female mice have an average of 76 megakarocytes per bone marrow compartment compared to 43 for pregnant non-transgenic females male mice treated with estrogen for two weeks increase the mean number of megakaryocytes to 61 per bone marrow compartment compared to 39 in estrogen-treated male wild-type mice |