A 30-year old conundrum concerning the genetics of T-even bacteriophages has at last been solved, the answer turning out to involve free-standing homologs of intron-encoded homing endonucleases.
Edgell, D. R. (2002, April 16). Selfish DNA: New abode for homing endonucleases. Current Biology. Cell Press. https://doi.org/10.1016/S0960-9822(02)00799-6