Like eukaryotes, but unlike bacteria, they have introns in their transfer RNA, but like bacteria they have polycistronic operons (gene regulators).

像真核生物而不像菌，转RNA有内，还有菌不具备的多的操纵（基因的调控）。

The lac operon is an inducible operon, whereas the trp operon is a repressible operon.

乳糖操纵元是可诱导的操纵元；色氨酸操纵元是可阻遏的操纵元。