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@WheresMyAnnie There are sperm derived factors that are contributed during fertilization also but they aren't studied as well, major influences seem to be from the egg. https://t.co/hz8jGJypjw
@WheresMyAnnie There are sperm derived factors that are contributed during fertilization also but they aren't studied as well, major influences seem to be from the egg. https://t.co/hz8jGJypjw