And random mating in F2 .
假定给定不同基因型频率的父本Ｆ１（ ｍ） 和母本Ｆ１（ ｗ） ，考虑其可能引出的杂交遗传模型，得出了“不管Ｆ１ 基因型频率分布如何，经过一代杂交、第二代Ｆ２ 内随机交配，则Ｆ３ 以后基因型即保持稳定”，同时本文还付给了由Ｆｎ 与Ｆ１ 杂交产生的可能结
A basic(Co) population originated from 72 crosses produced from 75 breeding materials with desired quality and agronomic traits has been synthesized after two times of random mating mediated by a dominant male sterile allele,Ms,in Brassica napus.
以显性核不育基因Ｍｓ为异交媒介，用７５个具有期望农艺和品质性状的甘蓝型油菜育种材料，配制了含有１２种细胞质类型的杂交组合，将这些组合在隔离条件下随机交配２次，合成了供轮回选择用的基础群体（Ｃｏ）。
We reviewed theoretical and empirical results related to these assumptions,and focused on the recent advances in random mating assumption and presented some new theoretical outcomes resulted from modeling researches.
本文就这3个假设的理论基础和经验研究的进展进行了综合论述,并着重讨论了随机交配假设的最新研究进展以及今后的研究方向和方法。
The higher the panmixis rate is,the faster the population shows tendency to equilibriu.
结果表明,随机交配群体和自交群体是普通群体的两种极端;随机交配率越大群体趋于平衡越快;随机交配率与杂合子频率呈正相关,与纯合子频率呈负相关;随机交配率大于零时,等位基因频率相等,杂合子频率最高;随机交配率等于1／2且等位基因频率相等时,3种基因型频率相等。
Multilevel orientation algorithm for searching efficient paths in stochastic traffic assignment;
随机交通分配中有效路径的分层定向算法
The determination of efficient paths in the transportation network is a key technology of stochastic traffic assignment.
该算法可以与各类随机交通分配模型结合,并为交通规划人员提供有力工具。
This paper compares three different types of network paths which are used in stochastic traffic assignment, and presents a new method for implementing stochastic assignment excluding all cyclic flows.
对用于随机交通分配的三种不同路径进行了比较和分析 ,研究了无环简单路径的寻求方法和无环简单路径集上的随机交通分配问题 。
RR,Rr and rr) of panmictic population and the variation trend of the system is studied.
用适合度来综合衡量杂种优势与杂种劣势,建立数学模型,推导出反映随机交配群体三种基因型RR,Rr,rr在不同世代的比例的差分方程组,并研究了它的变化趋势。
mating of individuals having more traits in common than likely in random mating.
与随机交配相比具有更多相同特征的个体之间发生的交配。
mating of individuals having traits more dissimilar than likely in random mating.
与随机交配相比具有更多不同特征的个体之间发生的交配。
The Characteristic of the System of Difference Equations about the Genotype Proportion of Panmictic Population
随机交配群体基因型比例差分方程组的性质
Most seed orchard theory is based on the assumption that panmixis will occur and that selfing will not be a serious problem.
大多数关于种子园理论，是以假定能发生随机交配和自花受精而不会成为严重问题为依据的。
Analysis of the Evolutionary Significance of Heterosis
杂种优势的进化意义探析——以适合度对随机交配群体遗传多样性的贡献为依据
Dynamic Stochastic Traffic Assignment Based on Shortest Path Search
基于最短路径搜索的动态随机交通分配
Bounding efficiency loss of multiclass stochastic user equilibrium traffic assignment under road pricing
收费情形下多用户类随机用户均衡交通分配的效率损失上界
The determination of efficient paths in the transportation network is a key technology of stochastic traffic assignment.
交通路网中有效路径的确定方法是进行各类随机交通流量分配的关键技术。
Stochastic Finite Element Methodbased on Orthogonal Decomposition of Random Field;
基于随机场正交展开理论的随机有限元法
dissociative ligand exchange mechanism
配体交换的解离机理
6 gel pages from CP and BC respectively were matched by pairs in the random samples group,and the range of match rate was from 43.2604% to 58.3477%.
随机标本组两两配对比较,匹配率在43.2604%~58.3477%之间;
Random Decision System Design in Supplies Distributing of Distribution Center s Products;
配送中心的产品供给—分配随机决策系统的设计
Distribution of Random Workloads in Parallel and Distributed Computing
并行分布计算中随机任务负载的分配
Theory of Interbasin Water Transfer and Stochastic Water Allocation Model Study;
跨流域调水理论和随机配水模型研究
Vibration Control and Optimal Collocation of Smart Intelligent Beam with Random Parameters;
随机智能梁振动控制及优化配置研究
The method of whereat direction exploring for Optimization Design of Engine Inlet Cams;
配气凸轮优化设计的随机方向探索法
Stochastic Network Model for Disassembly of Discarded Products;
装配式产品拆卸的随机网络模型研究
Dynamic asset allocation with stochastic interest rates in jump-risk;
有跳风险的随机利率与动态资产分配