There is a wrinkle, genetic imprinting. You can put a woman's X chromosome in a sperm but it'll be labelled "from mum" and not work quite right. See Prader Wi

There is a wrinkle, genetic imprinting. You can put a woman's X chromosome in a sperm but it'll be labelled "from mum" and not work quite right. See Prader Willi and Angleman syndrome for examples.