碱基颠换 meaning in Chinese

base transition

At the same time , there exists not some base deletion but only base substitution among them . there are 6 base transitions between the sequence of boacal5 ' and boccal5 " , and 2 transitions and 1 base transversions between boacal5 " and bogcal5 " , 3 transversions and 2 transitions between boccal5 " and bogcal5 " . 3 . alignment of according sequences of putative amino acid of cal homologs from 8 plants reveals high conservation according to the mads domains of them
发现三者之间碱基序列差异仅仅是发生了碱基替代而不存在碱基的缺失现象，其中boacal5 ’与boccal5 ’之间存在6次碱基转换，而boaca15 ’和bogcal5 ’之间则存在2次碱基转换和1次碱基颠换， boccal5 ’和bogcal5 ’之间则有3次碱基颠换和2次碱基转换。
In e coli , dna polymerases are key enzymes involved in two distinguished pathways contributing to untargeted mutagenesis . replication of dna by pol v ( umuc ) , in the presence of umud1 , reca and single strand binding protein ( ssb ) , is highly mutagenic and exhibits a predominant mutation pattern of base transversion . another error prone polymerase involved in untargeted mutagenesis is pol iv , encoded by dinb gene
在umud ' ， reca和单链结合蛋白ssb的协助下， polv ( umuc )能在单链模板上催化dna合成并产生高频率的以碱基颠换为主要形式的突变；另一个与非定标性突变有关的易误dna聚合酶是pol ，为dinb基因的编码产物。