其中最大的问题是基因克隆数变异的检测。
One of the biggest challenges has been the detection of CNVs.
有些拷贝数变异是很常见的，但还有一些则在人类中极少发生或是发生的频率较低。
Some CNVs are common, but others are rare or occur with low frequency among humans.
人类基因组拷贝数变异缺失在数量上也有很大的不同，有些人的缺失数甚至能达到几百万。
There is a wide variation in the amount of these CNV deletions which people have in their genome, with some people having several million.
本文还讨论了四川小麦幼穗分化过程中引致穗粒数变异的时期，以及安全孕穗、抽穗期。
The stage controlling seed number per ear during ear differentiation, safe booting date and safe heading date of wheat in Sichuan were discussed.
研究人员发现，在个子比较矮的人身上，会出现低发生率拷贝数变异过剩——部分基因组缺失。
And the researchers found an excess of low frequency CNV deletions - where part of the genome is missing - in shorter people.
这个膨胀的工具满足日益增长的需求，研究人员调查拷贝数变异，蛋白结合的活动，和DNA甲基化。
This expansive suite of tools meets the growing needs of researchers investigating copy number variation, protein binding events, and DNA Methylation.
他们研究被称为拷贝数变异（CNV）的染色体的删减和复制，发现在患有多动症的儿童中有 16%都存在。
Their study looked for chromosomal deletions and duplications known as copy number variants (CNV) and found that these were present in 16% of the children with ADHD.
最近遗传学家对以前被认为很罕见的遗传变异：拷贝数变异（copy number variation ，CNV）进行了更细致的研究。
Recently geneticists have taken a closer look at a genetic aberration previously considered rare: copy number variation (CNV).
母体，随机样本。样本统计， 样本平均数和变异数的动差。
Populations, random samples. Sample statistics, moments of the sample mean and variance.
对于有时间窗的非满载VSP问题，将货运量约束和软时间窗约束转化为目标约束，建立了非满载VSP模型，设计了基于自然数编码，使用最大保留交叉、改进的反转变异等技术的遗传算法。
On the VSP with time window, while the restraints of capacity and time windows are changed into object restraints, a mathematic model is established.
研究结果表明至少有10%—20%的基因活性方面的遗传变异归功于变异基因拷贝数方面的因素。
The results show that at least 10-20% of heritable variation in gene activity is due to CNVs.
上位效应平方和占总产仔数和活产仔数总遗传变异平方和的比例分别为6 3%和6 5 % ，可见上位效应对窝产仔数群体间遗传差异作用不大。
Epistatic component accounted for 6 3% for the total number born, and 6 5% for the number born alive, which showed that epistatic effect was not important in the genetic variation between populations.
算法采用自然数编码，自适应的交叉变异算子，并融入启发式信息有效地提高了搜索效率。
It introduces the natural number coding method, adaptive probabilities of crossover and mutation, and furthermore, makes use of heuristic information to improve search efficiency effectively.
种群内变异幅度最大和最小的分别为节间长和小穗数。
The variation extent of internode length is the Maximum in population, while that of spikelet number is the minimum.
质方图，百分位数，平均，中位数，变异…等。
人类基因组单体型图在检测在许多疾病涉及的基因变异方面的作用不言而喻并且这些结论也表明变异基因拷贝数指数也有类似的作用。
The HapMap has been invaluable in detecting variants involved in many diseases and these results suggest that the CNV index will prove similarly useful.
由不同的杂交方式所得到的第三代植株，其株高、穗位高、叶长、雌雄间隔期、穗上叶片数等性状表现不一致，存在较大的遗传变异。
Results showed different hybrid method had different effects for the plants, the variation degree were different to the same agronomic characters.
变异系数较小，即改良潜力小的性状为株高、穗长、主穗小穗数、有效小穗数。
The traits with low CV value are plant height, ear length, number of spikelets, available spikelets which had low improvement potential.
对于模型的求解方法，构造了一种自适应的混沌遗传算法，采用自然数编码方式，动态的在线调整算法的交叉和变异概率，并采用混沌优化方法作为变异算子。
The algorithm used natural number coding method with dynamically adjustment for the probability coefficients of crossover and mutation, and used chaos optimization method as the mut.
计算各组变异系数、标准差、极差、均数95%可信区间，比较连续3个心动周期与5个心动周期的参数测量值。
The standard deviation, range, variation coefficient, 95% confidence interval were analyzed, the average values of 3 cycles were compared with those of 5 cycles.
遗传变异幅度较大的性状有皮壳率、单株粒数、小区产量、单株粒重等。
The characters showing wide genetic variation were those as percentage of shell, grain number per plant, grain yield per plot and grain weight.
利用花的数性表型变异探讨了品种的演化历史和新品种选育的前景。
The origin, the evolutionary history and the prospect of breeding of the Loropetalum chinense var. rubrum are discussed based on the number variation of the flower structure.
但是他强调这次研究的对象都是先天携带这种基因变异的，所以对于后天服用这种药物的人是否有效还是个未知数。
But he noted that the subjects in the study were born with their mutations. So it is not clear whether the drug would help people who receive it later.
但是他强调这次研究的对象都是先天携带这种基因变异的，所以对于后天服用这种药物的人是否有效还是个未知数。
But he noted that the subjects in the study were born with their mutations. So it is not clear whether the drug would help people who receive it later.
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