Unnormal tetrads with uncomplete formation of cell plate, or even without any formation of cell plate, are also found after meiosis.
形成的不正常四分体中有一些具有不完整的横隔壁，一些则完全不形成横隔壁，而发育成具４个核的原生质团；气候异常是造成该时期不育现象的主要原因之一。
In the presence of K+ , the folding of the aptamer resulted in the formation of G-quartets, thus brought TMR close to the guanosines.
在有K+存在的条件下,核酸适体分子与K+结合后发生折叠,形成G四分体结构,使得TMR靠近富含鸟嘌呤的G四分体,并与鸟嘌呤发生电子转移,从而导致TMR荧光强度降低。
The tetrad micronucleus rate of Tradescantia paludosa with detergents increased significantly ( P <0 05), or extreme significantly (.
应用紫露草四分体微核技术对６种洗涤剂的遗传毒理学效应进行研究。