遗传效应

The effect and variation of major gene are estimated by the maximum likelihood method implemented via expectation-maximization algorithm. Major gene is tested with the likelihood ratio test statistic.

该方法以EM算法实现的极大似然估计方法进行主基因的效应估计，以似然比统计量进行主基因的各种遗传假设检验。

Methods: Mitotic Index, chromosome aberration and micronucleus test in bone marrow lymphocytes of mice were determined.

采用小鼠骨髓淋巴细胞有丝分裂指数试验、染色体畸变试验、微核试验，观察蒲公英水煎液对小鼠骨髓淋巴细胞的遗传损伤效应的影响。

A hybrid simply introduced with the ae gene is usually lack of commercial value because its amylose content is only about 50%. It may be effective to improve the amylose content to gather modificatory genes by recurrent selection.

遗传背景对直链淀粉含量的影响主要表现为非加性效应，注重正向修饰基因的积聚，通过轮回选择等手段提高育种群体直链淀粉含量，是高直链淀粉玉米育种的有效途径。

The simulated data of an oversaturated genetic model including 50 main effects and 50(50-1)/2=1225 epistatic effects were analyzed by E-bayes.

模拟研究。通过构建同时包括50个主效和50(50-1)/2=1225个上位性效应在内的超饱和遗传模型，采用E-bayes方法进行模拟研究。

This term describes the establishment of a new population by one or a few individual, resulting in low levels of genetic variation and often a disproportionate number of alleles that are rate in the parent population.

建立者效应描述由一个或几个个体建立新种群，导致低水平的遗传变异和在亲本种群中稀少的等位基因的经常不成比例的数量。

Penetrance can be influenced by mutation-specific phenotypes and the potential modifying effects of the patient's own genetic and environmental background.

外显率则受突变特异表型和病人自身的遗传和环境背景潜在的修复效应所影响。

Based on the factors of mass economy,the paper establishes a multi- warehouse location model which takes the sum of minimized supply costs,transport costs and fixed costs as the goal and within which supply costs are expressed by piecewise linear cost function,solves the model with a genetic algorithm and shows an example.

在考虑规模经济的因素下，以最小化项目的供货成本、运输成本与固定成本之和为总目标建立了一个多仓库选址模型，其中把供货成本用分段线性函数表示，体现了厂商存在的规模经济效应，并采用遗传算法对模型进行求解。

The research indicated that the heredity of resistance in F. fulva to flusilazole is control by polygene.

这些结果说明，叶霉菌对氟硅哇的抗药性遗传应该是由多基因控制的，抗药性具有累加效应。

Several even ts,that affect genetic variation during ecological restoration,such as sampling error and small population size (bottleneck or founding event and subsequent inb reeding and genetic drift),were extensively discussed.

分析 了生态恢复过程中影响种群遗传变异的因素，主要有取样误差和小种群效应(主要是瓶颈或建立者事件及其以后的近交和漂变)；在进行生态恢复时也要考虑局部适应，对影响种群局部适应的因素也进行了分析。

Quantative trait loci were identified and its effects were analysized by using triploid endosperm genetic model and interval mapping.

利用三倍体胚乳遗传模型和区间作图方法对子粒蛋白含量进行了QTL定位和效应分析。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。