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，RNA含有内含，还有菌不具备多顺操纵（基因调控）。

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

乳糖操纵元是可诱导操纵元；色氨酸操纵元是可阻遏操纵元。