1 Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ 08544, USA. Electronic address: tfukaya@princeton.edu.
2 Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ 08544, USA; Department of Molecular Biology, Princeton University, Princeton, NJ 08544, USA. Electronic address: msl2@princeton.edu.
Fukaya and Levine explain the basic features of the genetic phenomenon of transvection, a special class of genetic complementation of mutant alleles on homologous chromosomes.