随机交配的

It includes as follows:(1) That the right acceptance probability to decide the initial value temperature should be 0.6 are presented by experiment. For the first time, crossover and mutation operator are used in populations to calculate the initial value of temperature. At least the initial value of temperature is 〓.(2) Replacing random change operator with crossover and mutation operators.

2使用遗传算法中交配与突变代替模拟退火算法中随机扰动操作，对两种操作方法进行定性分析，得到突变和交配操作与随机扰动方法在本质上的一致性；同时首次提出在不同温度条件下，使用不同的比例因子，控制参与交配与突变的基因位数，实现了二次使用模拟退火算法的过程。

It is the differentia that three kinds of genotypes frequency of panmixia parts of common population are constant in every generation,but variable in selfing part.

不同的是普通群体随机交配部分的3种基因型频率在各世代是固定的量，自交部分的3种基因型频率是变量。

The author studied the changes in estradiol in female urine, mating behavior and factors influencing male mating investment in maske palm civet by using radioimmunoassay technique behavioral sampling techniques, and got the following results and conclusions

笔者使用同位素放射免疫分析方法研究了雌二醇在雌性果子狸繁殖中的变化过程、使用随机取样法和所有事件取样法研究了果子狸的交配行为和影响雄性果子狸交配投资的因素。得到以下结果和结论

Alter being fed 50 days for depleting the VA store in body, the female rats copulated with male rats. All the copulated rats were randomly divided into 4 groups: VA deficient group, VA supplement group, VA marginally deficient group, VA marginally deficient supplement group.

将交配后的雌鼠在各组内随机分为VA缺乏组、VA缺乏妊娠0d补充组、VA边缘缺乏组、VA边缘缺乏妊娠0d补充组。B、D组于妊娠第0d喂饲补充饲料。

Cows from lactation 1 to lactation 5 account for 20% of the total cow population respectively, and refresh 20%(4, 000) afterwards which are the progenies of the best 12, 000 cows and 10 sires.

基础群中第1胎到第5胎母牛的比例均为20％，以后母牛群每年更新20％（4，000头），由优秀的12，000头母牛和10头种公牛随机交配产生。

This result is consistent with the result come from PCRfingerprinting method. The results of the two methods indicate that maize, soybeanand castor-oil plant can act as refuges of Bt sensitive cotton bollworm as non-Btcotton; while sesame and peanut may not.

第三代棉铃虫的六个寄主种群间存在一定的遗传差异；其中，花生种群与其他种群间没有明显的基因交流，遗传分化比较明显；Bt棉上的棉铃虫与普通棉花、大豆、玉米上的棉铃虫敏感种群间基因交流频繁；而与花生、芝麻上的棉铃虫敏感种群间的基因流均不显著，说明它们间有可能不能进行随机交配。

The results suggest that bothmaize and castor-oil plant could be refuge to provide susceptible individuals and toprolong the effectiveness of Bt-cotton, but peanut and sesame may not.

说明除普通棉花外，玉米、蓖麻能作为庇护所，提供Bt易感棉铃虫与抗虫棉上的棉铃虫个体随机交配，稀释抗性基因频率，防止棉铃虫对转Bt抗虫棉的抗性，而芝麻和花生不适于作为Bt易感棉铃虫的庇护所在田间与转基因棉花套种。

Methods: Twenty male Sprague-Dwaley rats were randomly divided into two groups: the experimental control group and the Yi-Mu-Sa-Ke drug group. Uygur medicine Yi-Mu-Sa-Ke were given 250 mg/kg gavages, for six weeks. In the sixth week of the two groups were conducted APO penis erectile experiments and mating test. Then decteted the two groups' intra cavernous pressures.

取具有正常性功能SD雄性大鼠20只，随机分为正常对照组n=10）和伊木萨克组(n=10），用等量溶剂与伊木萨克片（250 mg·kg-1·d-1）分别对2组大鼠连续干预6周后，进行阿朴吗啡阴茎勃起实验和交配实验，并检测阴茎海绵体窦压；用酶联免疫吸附试验法检测阴茎组织中的一氧化氮合酶活性。

Three full-sibling binary CMS lines, 11 back-cross binary CMS lines, 10 half-sibling binary CMS lines, 10 isozygoty CMS lines and five restorer lines were chosen to make 50 single hybrids and 120 modified single cross hybrids by the way of NC Ⅱ design. The plots of F1 were arranged in the field in a randomized complete block design with 2 replications and the combining ability of 7 characters were analyzed using random model.

利用3个全同胞型二元不育系、11个回交型二元不育系和10个半同胞型二元不育系及其10个亲本纯合不育系，分别与南恢04、明恢86、辐恢838、先恢207和密阳46等5个恢复系按照NCⅡ交配设计配制了50个单交种和120个改良单交种，按随机区组的随机模型分析方法，对二元不育系主要性状进行了配合力分析。

If the number of matings is small, then the actual numbers of different types of pairing may depart significantly from the number expected on a purely random basis. Genetic drift is one of the factors that can disturb the HARDY-WEINBERG EQUILIBRIUM.

如果交配的数量很小，那么不同种类的配对的真实数量会与所期望的纯的随机的数量大不相同，遗传漂变也是一种可以扰乱哈迪—温伯格平衡的因素。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。