The plasmid paradox

Why?
(size, cost, copy number)
cryptic plasmid

something else

Elucidating the plasmid paradox is challenge in evolutionary theory, for this reason many researchers has focused their investigations on studying plasmids stability.
Plasmid modeling has been a field of interest because they can be use as vector to introduce a gene into a bacteria to produce a particular product.
Another motor for the study of plasmids behavior in a population has been the emergence and spread of antibiotic resistance. In which plasmids play a special role.

Models are cool

The importance of models not only rely in their help to understand a particular process. In order for a model to work, the model must reproduce a behavior or fit  an experimental  data set, in such effort, abstractions and generalization must be made  
.