遺(yi)傳(chuan)關(guan)系測試(shi)有哪些類(lei)型？

事實上(shang)，親(qin)子鑒(jian)(jian)定不(bu)僅可(ke)以(yi)鑒(jian)(jian)定親(qin)生父(fu)母，還可(ke)以(yi)鑒(jian)(jian)定親(qin)屬(shu)關系。目前(qian)，親(qin)屬(shu)關系鑒(jian)(jian)定主要包括以(yi)下幾類：

1、常(chang)規(gui)血緣(yuan)關系鑒定

這(zhe)是目前需(xu)求量(liang)最大的親子(zi)(zi)關系鑒定類(lei)型，包(bao)括父母子(zi)(zi)女（又稱三(san)胞胎）、父子(zi)(zi)（或(huo)母子(zi)(zi)）當(dang)事人(ren)(ren)（又稱二人(ren)(ren)）親子(zi)(zi)鑒定。此類(lei)識別的準(zhun)確率可(ke)達99.999999%。

2. 跨代遺傳(chuan)關(guan)系的(de)鑒定

此(ci)類(lei)認(ren)定是指確認(ren)曾(ceng)(ceng)(ceng)(ceng)祖(zu)(zu)父(fu)母(mu)(mu)、祖(zu)(zu)父(fu)母(mu)(mu)與曾(ceng)(ceng)(ceng)(ceng)孫(sun)(sun)（曾(ceng)(ceng)(ceng)(ceng)孫(sun)(sun)女(nv)）、孫(sun)(sun)子女(nv)（孫(sun)(sun)女(nv)）之間(jian)(jian)的(de)生物(wu)學(xue)關系(xi)(xi)。還包括純(chun)父(fu)系(xi)(xi)親屬(shu)關系(xi)(xi)鑒定，如確認(ren)曾(ceng)(ceng)(ceng)(ceng)祖(zu)(zu)父(fu)、祖(zu)(zu)父(fu)、曾(ceng)(ceng)(ceng)(ceng)孫(sun)(sun)、孫(sun)(sun)子之間(jian)(jian)的(de)親屬(shu)關系(xi)(xi)；以及純(chun)母(mu)(mu)系(xi)(xi)親屬(shu)關系(xi)(xi)鑒定，如確認(ren)曾(ceng)(ceng)(ceng)(ceng)祖(zu)(zu)母(mu)(mu)、外祖(zu)(zu)母(mu)(mu)和孫(sun)(sun)女(nv)之間(jian)(jian)的(de)親屬(shu)關系(xi)(xi)。或曾(ceng)(ceng)(ceng)(ceng)孫(sun)(sun)女(nv)。關系(xi)(xi)。

3、親緣關系鑒定困難

除了以上兩類之(zhi)(zhi)外，還有一些比(bi)(bi)較困難的親(qin)屬(shu)關(guan)(guan)系(xi)(xi)鑒(jian)(jian)定(ding)，比(bi)(bi)如(ru)兄(xiong)弟(di)(di)姐(jie)妹(mei)（兄(xiong)弟(di)(di)、兄(xiong)弟(di)(di)、姐(jie)妹(mei)、兄(xiong)弟(di)(di)姐(jie)妹(mei)）之(zhi)(zhi)間(jian)的關(guan)(guan)系(xi)(xi)鑒(jian)(jian)定(ding)以及父母互相猜疑的表兄(xiong)弟(di)(di)姐(jie)妹(mei)之(zhi)(zhi)間(jian)的關(guan)(guan)系(xi)(xi)鑒(jian)(jian)定(ding)、叔伯伯父之(zhi)(zhi)間(jian)的關(guan)(guan)系(xi)(xi)鑒(jian)(jian)定(ding)以及親(qin)屬(shu)關(guan)(guan)系(xi)(xi)的鑒(jian)(jian)定(ding)。侄(zhi)子(zi)、姑(gu)姑(gu)和(he)侄(zhi)女之(zhi)(zhi)間(jian)等。叔叔和(he)侄(zhi)子(zi)（侄(zhi)女）之(zhi)(zhi)間(jian)的血緣關(guan)(guan)系(xi)(xi)鑒(jian)(jian)定(ding)等。