科学家产生了序列变异的抑菌和杀菌肽，并在体外的各种微生物上做了检测。
From familiar fungicidal and bactericidal peptides the research scientists produced sequence variations and tested them in vitro on various microbes.
温度梯度凝胶电泳(TGGE)是一种用于检测核酸序列变异和点突变的电泳方法。
Temperature gradient gel electrophoresis (TGGE) is a new and powerful electrophoresis method for separation of nucleic acids (DNA and RNA) and analysis of sequence variations.
研究人员们称，在体型小的狗类品种中，与这一基因相邻的某种序列变异使这些品种的狗无法长得更大。
In small dog breeds a mutation in the sequence next to the gene kept them from growing larger, the researchers said.
赵方辉博士是否知道为荷兰居民开发的这些方法能否检测到在中国流行的所有HPV-16与HPV-18序列变异型?。
Do you know if these methods developed for the residents in the Netherlands can detect all HPV 16 and HPV 18 variants prevalent in China?
遗传科学的核心是一个高见：基因序列中可识别的变异可以预测一个人学习、推理和解决问题的能力。
Central to hereditarian science is a tall claim: that identifiable variations in genetic sequences can predict an individual's aptness to learn, reason and solve problems.
事实证明，沃森和文特尔在基因序列上变异的相同处比他们各自与金姆的要少。
It turned out that Watson and Venter shared fewer variations in their genetic sequences than they each shared with Kim.
一个SNP就是只在一个基因序列的一个核苷酸中发生的变异；就像一个拼写变化只影响一个罕见的长单词中的一个字母。
A SNP is a variation in just one nucleotide of a genetic sequence; think of it as a spelling change affecting just one letter in an uncommonly long word.
《科学》杂志在发表这个序列的同时还发表了三篇论文，其中一篇比较了27个全球代表性玉米品种基因组的特定区域，从而展示遗传变异的共同模式。
Science published three papers alongside the sequence, one of which compares specific sections of the genome of 27 globally representative maize varieties to show common patterns of genetic variation.
研究人员使用微阵列来筛选研究中百岁老人的约30000种常规基因变异，这种芯片上点有特定序列的DNA。
The researchers used microarrays, chips dotted with specific sequences of DNA, to screen centenarians in the study for about 30, 000 common genetic variations.
但在自然界大多数种群中，很难判断遗传是否源于DNA序列改变或者表观基因变异。
But it's hard to tell in most natural populations whether inheritance is due to DNA sequence variation or epigenetic changes.
研究者们对于6000组有可能出现突变的基因进行了逐一的检测，以便在孩子的基因序列中寻找到变异的可能性。
Looking for new mutations in the child, researchers combed through 6,000 possible mutations in each genome sequence.
研究者们对于6000组有可能出现突变的基因进行了逐一的检测，以便在孩子的基因序列中寻找到变异的可能性。
Looking for new mutations in the child, researchers combed through 6, 000 possible mutations in each genome sequence.
这意味着700人基因组中的大约1000个基因用来检定序列中的遗传变异。
This amounted to about 1000 genes, and the genomes of 700 people were sequenced to help identify variations among the genetic sequences.
很多糖尿病相关基因变异存在于DNA序列的“旧”区域，表明人类进化而易于发生糖尿病。
Many of the diabetes-linked variations seem to be the "older" version of the DNA sequence, suggesting that human beings evolved to be susceptible to diabetes.
这一细节让他们作出结论：可能是遗传获得的非编码DNA序列、而不是基因变异才使得最大部分的转录因子结合位置发生变化。
This detail led them to conclude that inherited non-coding DNA sequences – not mutations in genes – may drive the lion's share of differences in where transcription factors attach.
在基因序列中这都是很小的变异——这种突变没有影响到基因的功能。
The variants are small alterations in gene sequences - they are not mutations that destroy a gene's function.
然后将所得序列进行系统进化树和氨基酸变异分析。
The sequences thus obtained underwent phylogenetic tree analysis and amino acid variation analysis.
最初，三个核心课程被开发：序列相似性搜索、遗传变异和人类基因组资源。
Initially, three core courses were developed: Sequence Similarity Search, Genetic Variation, and Human Genome Resources.
目的筛选影响H5N1亚型甲型流感病毒对哺乳动物毒力变异的HA序列主要氨基酸位点。
Purpose To explore key amino acids sites on HA sequence which may determine the virulence of influenza a H5N1 for mammalian species.
目的研究中国艾滋病病毒1型（HIV-1）毒株V3环序列的变异性。
Objective To study sequence variation of V3 loop of HIV-1 strains prevalent in China.
表观遗传学是近年来新兴起的生物学学科，主要研究在没有DNA序列改变情况下基因功能可逆的、可遗传的变异。
Epigenetic is the latest biological science in recent years, which mainly researches gene function reversible and heritable variation without DNA sequence changes.
缓变是因DNA高级结构变化形成新的基因序列而引起的变异。
Mild variation iscaused by the change of the higher structure of DNA and has its molccular basis.
在无HLAA2表型的感染者中，其感染后5年病毒抗原表位肽段既无共有序列的变异，也无琥珀突变。
However, in the HLA A2 - individual, the epitope had neither variation nor amber mutation in 5 years after infection.
研究结果表明，这个长度热点突变区的核苷酸序列分析是研究小麦与山羊草叶绿体基因组之间遗传变异关系的一个非常有效的途径。
The results indicate that the sequence analysis of the hotspot region is a very powerful tool to investigate genetic variations of chloroplast genome in Triticum and Aegilops.
根据KRL-1与其他分离物CP基因序列和生物学症状上的差异，可推断KRL-1存在较大的分子变异。
The divergence of CP gene sequences and biological symptoms indicated that there was much molecular variability on KRL-1.
结论：利用共有峰率和变异峰率双指标序列分析法可以对两个或多个中药样品进行方便可靠的鉴别。
CONCLUSION: The dual index sequential analysis enables us to distinct two or more herb's IR fingerprint.
在本文研究中，基于利用五个间隔序列的叶绿体dNA单倍型分析，我们提出了猪笼草种群的遗传变异模式。
In this study, we present the patterns of genetic differentiation of pitcher plant populations based on chloroplast DNA haplotype analysis using the sequences of five spacers.
在本文研究中，基于利用五个间隔序列的叶绿体dNA单倍型分析，我们提出了猪笼草种群的遗传变异模式。
In this study, we present the patterns of genetic differentiation of pitcher plant populations based on chloroplast DNA haplotype analysis using the sequences of five spacers.
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