Effects of ultraviolet rays on phenotype variation and development of drosophila melanogaster 紫外线对果蝇生长发育和表型变异的影响
The prescription of the tissue culture of petunie hybrida and the dna level of phenotypic variation seed lings produced by tissue were discussed 摘要探索了矮牵牛组织培养的配方,对组培过程中产生的表型变异植株进行了dna水平的分析。
The most effective methods to identify gene function is to examine the phenotypic alteration of cells or the whole body after gene expression is increased or blocked 鉴定基因功能最有效的方法是观察基因表达增加或被阻断后在细胞和整体水平所产生的表型变异。
A . thalianas were respectively introduced by ion beam with a collection of donor dna having a gradient genetic relation with a . thaliana . in vegetative phase of tl , the ratio of phenotypic variation showed no distinct difference among these transformed populations 用离子束介导与拟南芥菜亲缘关系从近到远一系列的外源供体的全dna转化拟南芥菜,在转化当代营养生长期,各转化群体的表型变异情况没有明显的差别。