Analysis of recombination in mammalian cells using SV4O genome segments having homologous overlapping termini

Abstract
Segments of SV40 DNA having homologous overlapping termini recombine to produce viable genomes in monkey cells. Frequencies of recombination on either side of a deletion marker are non-random; replication and palindromes do not appear to be essential. Since recombination involves host enzymes, a suitable system has been devised for analysing host cell recombination functions.