1·In the case of Lymnaea peregra, studies indicate that a dextral gene is expressed during egg formation.
在锥实螺的例子中，研究表明右旋基因是在卵的形成期表达的。
2·Butt at one time, handedness (twist direction of the shell) was equally distributed within some snail species that have become predominantly dextral or, in a few species, predominantly sinistral.
然而现在已经变为右旋占多数的蜗牛种类，其旋向性（壳的螺旋方向）一度也曾均衡分布，在某些种类中，甚至左旋曾占优势。 。
3·This study shows that the formation of antithetic normal fault is controlled by NE WS strike tensile stress and dextral shear stress and the strike is nearly vertical to the tensile stress.
研究认为，北北东向反向正断层的形成受北东—南西向张应力及右旋剪切力控制，反向正断层的走向与张应力方向基本垂直；
4·Since the Tertiary period, the Red River Fault Zone suffered both of the sinistral movement and dextral movement, but the activities of the north and the south segment were different.
断裂带自第三纪以来，经历了左旋运动、右旋运动，南北两段的活动性有一定的差异。
5·In the case of Lymnaea peregra, studies indicate that a dextral gene is expressed during egg formation;
在锥实螺的例子中，研究表明右旋基因是在卵的形成期表达的；