Spring diaries ( The way you think)

The various animals are based on other virus :-- SV40 vectors, Bovine papillamovirus vectors, Retrovirus vectors, etc   And transposable elements are  Drosophila P elements vectors;  It may be pointed out that some of the mammalian vectors, early or late region replacement SV40 vectors, retrovirus vectors, etc, behave like viruses in that they produce virions( virions are those process or things which infect the host cell).  Some other vectors are like bacterial plasmids, e.g, SV40-based plasmid vectors, bovine papillamovirus vectors and polyoma virus vectors; these vectors have to be introduced in the cells using a suitable transfection technique . Most of the vectors are replicating in that they have the ability to replicate in suitable animal host cells , but some of them are non-replicating, for example the passive transformation SV40 vectors; the latter are used to carry DNA sequences into the host cells for integration into the animal genomes . A fish vectors A...