- (空白突變)：能夠完全消除基因功能，通常是由于基因的物理刪除導(dǎo)致。
- 無效突變[由于大片段插入、缺失或重排而導(dǎo)致基因產(chǎn)物完全無效
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null mutation中文什么意思
例句與用法
- Gene duplication is one of the most important factors that influence the evolution of genome size , the origination of novel gene , the genetic robustness against null mutations , the speciation , etc
摘要基因重復(fù)是基因通過不等交換、逆轉(zhuǎn)錄轉(zhuǎn)座或全基因組重復(fù)等途徑產(chǎn)生一個與原基因相似的基因或堿基序列。 - Here we found g proteins also function in leaf , silique development and the yield of pollen microspore . we observed several traits or characters in the offsprings of gpal , agbl null mutation and gpa1 overexpression lines and found that the width of mutants " lamina is larger than that of the wild type , whereas the lamina length , petiole length and rosette diameter is smaller than the wild type , the ga overexpression lines is different from the mutants ; the silique length and the pedicel length is larger in mutants than that of wild type , and slightly smaller in overexpression lines than the control ; the morphometric character in silique tip is different in gpal from agbl mutants ; the yield of pollen microspore is larger in null mutants than wild type whereas smaller in overexpression lines
實(shí)驗(yàn)中我們跟蹤觀察了多代異三聚體g蛋白a亞基超表達(dá)轉(zhuǎn)基因植株及a ， p亞基缺失突變體的表型特征，發(fā)現(xiàn)突變體的葉片寬度大于對應(yīng)的野生型，葉片長度，葉柄長度及蓮座直徑小于野生型，而超表達(dá)植株的上述某些特征與突變體相反; gp時突變體的長角果長度，花梗柄部長度大于野生型，而超表達(dá)ga植株種英則略小于對照; gpal突變體長角果尖端未出現(xiàn)咭乙i突變體的特征: gpal ，口gbl突變體花粉生成量大于野生型，而超表達(dá)ga植株的花粉生成量則略小于對照。