R质粒与r质粒的区别是什么？(R质粒是什么)
R质粒是什么
R质粒(R plasmid)是一种细胞质性的质粒，这种质粒具有使寄主菌对链霉素、氯霉素、四环素等抗菌素或磺胺剂产生抗药性的基因群，和F因子一样，通过接合进行转移，获得该因子的细菌同时获得对多种药剂的抗性，因而给治疗带来很大麻烦。R质粒的实体为环状双链DNA分子。
什么是R质粒？
就是带有抗性的质粒。详情请见百度百科R质粒
FG12质粒 和FUGW质粒是同一个质粒吗？如果有区别，区别在哪里？
FG12 was derived from FUGW. The extra nucleotides from the HindIII site downstream of the Ubiquitin-C promoter (UbiC) promoter to the NcoI site in front of the initiation codon of EGFP were deleted by a HindIII-NcoI adapter ligation. Further, XbaI, EcoRI, and XhoI sites at the 3' end of EGFP and WRE were eliminated, followed by a polylinker oligonucleotide ligation at the PacI site between the Flap element and the UbiC promoter, to generate a set of new restriction sites, XbaI-HpaI-XhoI-BstXI-PacI, that is optimal for accommodating the siRNA expression cassette. To construct the siRNA-expressing lentiviral vectors, the siRNA expression cassette can be subcloned into FG12 between the XbaI and XhoI sites.
所以这两个质粒基本骨架一样，只是多克隆位点有所不同
ti质粒与质粒有何区别
质粒是一个宽泛的概念，表示基因组外的所有中小型闭合环状DNA。
Ti质粒是根癌农杆菌菌体中的质粒，包含在农杆菌和植物细胞体内的两套表达系统。