请问谁能帮我分析下祖源？

{"result":[{"race_desc":"\u4e2d\u534e\u6c11\u65cf","race_en":"chinese_nation","race_probality":"0.949642","area":[{"block":"chinese_nation","race_desc":"\u5317\u65b9\u6c49\u65cf","race_en":"han_northern","race_probality":"0.397111"},{"block":"chinese_nation","race_desc":"\u5357\u65b9\u6c49\u65cf","race_en":"han_southern","race_probality":"0.331648"},{"block":"chinese_nation","race_desc":"\u8499\u53e4\u8bed\u65cf\u7fa4","race_en":"mongolian","race_probality":"0.186753"},{"block":"chinese_nation","race_desc":"\u9ad8\u5c71\u65cf","race_en":"gaoshan","race_probality":"0.028314"},{"block":"chinese_nation","race_desc":"\u7572\u65cf","race_en":"she","race_probality":"0.005746"},{"block":"chinese_nation","race_desc":"\u5176\u4ed6","race_en":"other","race_probality":"0.0002"}]},{"race_desc":"\u4e1c\u5317\u4e9a","race_en":"ne_asian","race_probality":"0.050087","area":[{"block":"ne_asian","race_desc":"\u65e5\u672c","race_en":"japanese","race_probality":"0.046580"},{"block":"ne_asian","race_desc":"\u97e9\u56fd","race_en":"korean","race_probality":"0.003497"},{"block":"ne_asian","race_desc":"\u5176\u4ed6","race_en":"other","race_probality":"0.0001"}]},{"race_desc":"\u5176\u4ed6","race_en":"other","race_probality":"0.0004","area":[]}],"case_id":"ANCESTRY","prefix":null,"description":"\u7956\u6e90\u5206\u6790","color":null,"detail_url":"\/report2\/ancestry\/"} 父亲是有族谱的汉族，明代在江西，我们这分支迁入湖南，家族庞大。母亲家庭没有族谱，外公湖南出生长大，但长相偏北方，不清楚他的父母来源。外婆四川人，长相很典型南方长相。蒙古血统是来源于外公吗？我感觉我长相标准南方人，北方汉族比例这么高我惊呆了