DUKE UNIVERSITY IMAGE: RING-LIKE CIRCULAR DNA HAS BEEN SEEN COPYING ITSELF BY BORROWING SOME OF THE CELL’S MACHINERY, JUST AS A VIRUS DOES. CREDIT: FU YANG, ZZ LAB AT DUKE UNIVERSITY Like its viral cousins, a somewhat parasitic DNA sequence called a retrotransposon has been found borrowing the cell’s own machinery to achieve its goals....
