transversion

The transition sites of mtDNA D-loop HVI sequences between the goat breeds were 8 and transversion sites were 118 , the ratio of transitions to transversions was 15 / 1 , suggesting Chinese goat has the high transition bias .

中国山羊品种mtDNAD-loopHVI序列的121种单倍型共有颠换位点8个，转换位点118个，转换/颠换率为15：1，说明中国山羊具有很强的转换偏倚性。

The eight base differences include one deletion , five transition , and two transversion .

该序列与普通牛的相应序列具有很高的同源性（98.1℅），但存在8个碱基差异，碱基突变类型包括1个缺失，5个转换和2个颠换。

Transforming Bridge The results show that the types of DNA base mutation included the transition , the transversion and the deletion .

结果显示：碱基变异的类型包括转换、颠换和缺失。

Of all CO ⅰ gene sequences , the number of the transition is 2 , and its of the transversion is 0 .

整个COⅠ基因序列的碱基转换数为2，颠换数为0。

There were 49 different sites between the two species , including 21 transition sites , 22 transversion sites and 6 deletion / insertion sites .

二者的序列有49处差异，其中21个位点为转换、22个位点为颠换和6个缺失/插入位点。

Ames test showed that both of the base pair transversion and frameshift mutant in DNA was not induced by irradiated starch .

Ames试验也说明辐照淀粉不诱发DNA中碱基对的置换型和移码型突变。

But the mutation showed obvious base bias with most substitutions at A / T positions and a prevalence of transition over transversion .

其突变类型有明显偏向性，以A/T的突变为主，转换多于颠换。

Nucleotide base transitions were found at 3 loci in the sequence , while there is no insertion , deletion and transversion mutation .

该序列在3个位点处发生转换型突变，未发现碱基的增加、缺失以及颠换型突变。

The substitution of a purine for a pyrimidine , or vice versa is a transversion .

嘌呤为嘧啶取代或嘧啶为嘌呤所取代，叫做颠换。

In the D-loop region , there are 13 and 1 sites , respectively , characterized by transition and transversion among the 4 sun bears sequenced .

在D环区，有13和1个位点分别出现转换和颠换。

Interestingly , the frequency of the base transition ( 58.3 % ) is obviously higher than that of the base transversion ( 29.2 % ) among the base replacements .

在碱基置换中，转换的频率（58.3%）高于颠换的频率（29.2%）。

The results showed that among different species the transition / transversion ( Ts / Tv ) of Cytochrome b gene was 4.9 , suggesting that the mutation was not saturation ;

结果显示：牛亚科不同物种间线粒体细胞色素b基因的转换/颠换比值为4.9，突变未达到饱和状态；

The dominant type of variation was transition ( 94.17 % ), followed by transversion ( 2.53 % ) . The most common transition types were A → G and T → C.

可变碱基的主要变异形式为碱基转换（94.17%），其次为颠换（2.53%），最常见的碱基转换类型为A→G和T→C。

In the 433 nucleotide sites , 34 transitional and 21 transversional sites with 35 indels were found , and the ratio between transition and transversion was 1.67 .

在433个核苷酸位点中，有插入/缺失35个，转换为34，颠换为21，转换/颠换比率为1.67。

Different activities were recorded in the superior and inferior heads of the external pterygoid muscle during the movements of elevation-depression , protrusion-retrusion , and right-left transversion of the mandible .

在张口与闭口，下颌前伸与后退以及下颌左、右侧运动中，翼外肌上、下头出现不同的肌电活动。

In Xi , an EC cases the mutation spectrums of exon 5 were relatively concentrated ( mainly codon 157 、 159 ), and the G → T transversion was most prevalent ( 5 / 10 );

西安市病例p53第五外显子突变谱相对集中（157、159密码子为主），G→T颠换较多见（5／10）；

The ratio of transition and transversion ( R ) is 0.84 , and the ratio of Chrysomelinae ( 0.71 ) is lower than the average , so it is considered as the most ancient species in Chrysomelidae .

转换与颠换的比值为0.84，叶甲亚科转换与颠换之比（0.71）低于平均值，认为叶甲亚科是叶甲科演化历程中较为古老的种类；

In Point mutations , transversion between the purine and pyrimidine bases was 75 % , base conversion was about 25 % . 19 mutation sites of mtDNA were same both in OSCC and paracancerous tissues .

点突变中碱基嘌呤与嘧啶的颠换换占75%，碱基转换约占25%。癌组织和癌旁组织中有19个相同的突变位点。

Methods : ABO blood group was identified in recipients and donors of allogenic stem cell transplantation , and the blood component and amount , the time for RBC blood group transversion and stem cell engraftment were analyzed in 28 patients undergoing ABO incompatible transplantation .

方法：对异基因造血干细胞移植供受者进行ABO血型鉴定，并对28例ABO血型不合患者的临床输血种类、输血量、红细胞血型转变时间及造血干细胞植活时间进行统计与比较。

The sequencing results showed that four variant sites were found within or adjacent to the known IL-4 regulatory element . A C to A transversion located at - 229 position was just within the positive regulatory element - ⅰ ( PRE - ⅰ) in one patient .

DNA测序结果显示有四处变异位点位于已知的调控元件之内或毗邻位点：一名病人-229位C被A所替代，该变异恰好位于IL4正性调节元件Ⅰ（PREⅠ）元件之内；

The results showed that the average nucleotide mutational rate of mtDNA D-loop in 3 Chinese Holstein cow was 0.59 % , and three types of mutations including transition , transversion and insertion were all found in mtDNA D-loop region , of which transition was the most frequent .

结果发现，3头中国荷斯坦牛mtDNAD-Loop区的平均核苷酸变异率为0.59%，其核苷酸变异类型包括转换、颠换和插入3种形式，其中，以转换最为常见。