<human>:  With regards to the history of recombinant DNA, where did the first recombinant DNA experiments take place?
<bot>: The first recombinant DNA experiments took place at the University of Wisconsin in the early 1970s. The experiments were conducted by molecular biologists who were trying to understand how genes are copied during cell division. The scientists used the bacteriophage T4 to study the replication process. They found that the phage’s genes were being copied by the T4 DNA polymerase enzyme.