Sickle-cell anaemia is passed on through a recessive gene.镰状细胞贫血通过隐性基因遗传给后代。Blue eyes are recessive and brown eyes are dominant.蓝眼睛是隐性的;而褐色眼睛是显性的.F 1 females could be backcrossed to the male homozygous recessive parent.也...
Vanadium seldom forms mineral deposit. It is mainly exist in vanadium titanomagnetite coal gangue and claystone.钒一般很少单独形成矿床, 它主要赋存于钒钛磁铁矿、石煤矿、粘土岩中.Coupled unsaturated flow in claystone has high effect on strength and stab...
The rich life of Svalbard, Norway's Arctic archipelago, faces a creeping thaw.生物资源丰富的斯瓦尔巴德群岛, 挪威的北极群岛, 面临逐渐解冻的危机.A numerical study on the floristics of the Zhoushan Archipelago.舟山群岛植物区系地理的数值研究.Arrives islands succes...