At this point esch chromosome consist of a pair of chromatids and the two associated chromosomes are termed a tetrad.此时每条染色体由一对染色单体构成,这两条联合的染色体称为四分体.Microspore abortion occurred after the tetrad formation.小孢子败育发生在四分体形成以后...
Megaspore tetrad is linear. The chalazal megaspore develops into an embryo sac of Polygonum type.大孢子四分体为线形, 合点端功能大孢子发育成为蓼型胚囊.The chalazal megaspore of a linear tetrad develops into a polygonum type sac.四分体线行排列,合点端的大孢子发育为...
They are also of interest in disabusing our minds of the tyranny of certain facile generalizations.它们还可以使我们的头脑摆脱某些轻率的结论的束缚.Certain generalizations can be derived from the data in Table 6.从表6的数据可以得出某些结论.They were of great...
A man who always anticipates his income can never save or become rich.总是预支工资,寅吃卯粮的人,永远不能储蓄或成为富人.It anticipates completely the form of electrodynamics found several years later from the microscopic theory.它完全预言了几年后微观理论所发现...
This system of canonical identifiers is used for interface querying and component instantiation.这种标准的标识符系统用于接口查询和组件实例化.a canonical syllable pattern规范的音节模式This is a combinatorial problem in canonical form.这是组合论中的典型问题.The ...