微基因，23魔方，23andMe祖源分析对比。

{"result":[{"race_desc":"\u4e2d\u534e\u6c11\u65cf","race_en":"chinese_nation","race_probality":"0.999700","area":[{"block":"chinese_nation","race_desc":"\u5317\u65b9\u6c49\u65cf","race_en":"han_northern","race_probality":"0.671009"},{"block":"chinese_nation","race_desc":"\u5357\u65b9\u6c49\u65cf","race_en":"han_southern","race_probality":"0.256442"},{"block":"chinese_nation","race_desc":"\u50a3\u65cf","race_en":"dai","race_probality":"0.042107"},{"block":"chinese_nation","race_desc":"\u9ad8\u5c71\u65cf","race_en":"gaoshan","race_probality":"0.026425"},{"block":"chinese_nation","race_desc":"\u7572\u65cf","race_en":"she","race_probality":"0.003647"},{"block":"chinese_nation","race_desc":"\u5176\u4ed6","race_en":"other","race_probality":"0.0002"}]},{"race_desc":"\u5176\u4ed6","race_en":"other","race_probality":"0.0003","area":[]}],"case_id":"ANCESTRY","prefix":null,"description":"\u7956\u6e90\u5206\u6790","color":null,"detail_url":"\/report2\/ancestry\/"} 我用23andMe的数据，输入到wegene和23魔方中分析。结果很不一样。微基因报告在上面。23魔方是：50%南方汉族+22%苗族基因 外加 2.8% 韩国，1.8%日本。 23andMe因为是美国数据裤，模糊给出：55%的南方汉族基因和40%的北方汉族基因。
我想知道这个准么，怎么每个数据库差别这么大。