How detection of recombinant DNA is done?

Recombinant DNA technology is the most emerging technique for the production of DNA for the useful bio-materials like insulin. So to produce recombinant DNA two different DNA is rejoined. so cleavage...

Recombinant- is the DNA fragment of interest Nonrecombinant- the undesired foreign DNA

Well recombinant DNA are DNA that have DNA parts from other organisms. The DNA from the organisms, at least two, are then combined using modern engineering techniques. -Hope I answered your question...

has occurred in sexually reproducing forms. can be produced with new biological techniques. has produced changes that resulted in evolution.

No, Recombinant DNA is a collection of methods to analyse and create DNA molecules from two 'unrelated' organisms and then combined into one. See this website for a visual example...