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Interbreeding and natural mutation accumulation may be major factors in genetic variation among the hybrid and parents.

自然变异的累积和天然异交可能是导致SC704及其亲本遗传变异的主要原因。

The results showed:intercomparison sequence from Exonl to part Intronl fragment amplification by primers 1 of two individual selection from each swinery with pig L-FABP gene sequence published in GenBank,found that base site of 237、258、315 of all individuals were A、T and A respectively,different with DQ182323 base sequence of G、C and C,and existence G403A mutation between individual.

结果表明：引物1扩增的外显子1到部分内含子1片段每个猪群选择两个个体经测序得到的序列与GenBank上已发表的猪(DQ182323)的L-FABP基因序列比对，发现所测所有个体237位点、258位点和315位点碱基分别为A、T和T与DQ182323序列的碱基G、C和C不同，而且所测个体间存在G403A突变。

Numerical experiments show that the updating algorithm by using intergeneration differential and chaotic mutation (algorithm 8) is a good selection. Simultaneously, the updating effect is perfect when the updated particles are about 20%.

通过数值实验得出基于代间差分和混沌变异的粒子更新算法（即算法8）是一种很好的选择，并且当性能较差的20%左右粒子按照这种算法更新时效果较好。

Based on the simulation of natural death process of 5% B-cell in biology clone selection, this paper proposes 8 kinds of updating algorithms according to intergeneration differential, theory of chaos, principle of mutation respectively, and selects the updated particles in terms of simulated annealing method.

因此模拟生物克隆选择中5%的B细胞自然消亡过程，在粒子群优化算法进化过程中分别基于代间差分、混沌理论、变异原理等方法设计了8种粒子更新算法，并按照模拟退火方法进行更新后粒子的选择。

Of or having the nature of an invocation.a mutation due to an intramolecular reorganization of a gene.

一个基因分子内部进行带基本性质的重新组合所形成的突变。

One who conveys news or information .a mutation due to an intramolecular reorganization of a gene.

一个基因分子内部进行带基本性质的重新组合所形成的突变。

A mutation due to an intramolecular reorganization of a gene .

一个基因分子内部进行带基本性质的重新组合所形成的突变。

Of 21 HCC shown to have 249 codon mutation, 20 exhibited high intranuclear accumulation of p53 protein. p53 protein staining was negative in the surrounding noncancerous hepatic tissue.

启东肝细胞癌中，p53基因发生着249密码子的持续性、纯合型的高频度错义突变，它伴随着p53蛋白在癌细胞核内较普遍的高度积累。

It was intuitionist and brief by the Matrix coding,the local optimum was avoided and the global optimum solution was obtained by the crossover and mutation operation.

采用的矩阵编码方法具有直观、简单的优点；通过交叉和变异让搜索跳离局部极值的陷阱，搜索到全局最优解。

Due to the inveracity of statistical probability with little sample of disasters, the mutation progression was used to calculate the probability instead of the statistical probability and fuzzy degree instead of brittle events' value.

鉴于小样本灾害事件统计概率的不准确性，用突变级数法计算的脆性因子突变概率代替脆性风险熵计算中的统计概率，模糊数代替脆性事件结果价值。

The receding calculations and experiment analyses in this subject are built on the blood cast of pig tongue.

本研究课题的前期工作是采用猪舌血管铸型模拟人舌而进行的数值计算与实验分析。

"Each human infection constitutes an opportunity for genetic modification of the virus through reassortment, mutation, or both...."

&每一次人类的感染都暗藏着一次基因修改的机会，无论是通过病毒的整合、突变或者兼而有之。。。。&