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

像真核生物而不像细菌，转运RNA中含有内含子，还有细菌不具备的多顺子的操子（基因的调控子）。

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

乳糖操可诱导的操；色氨酸操可阻遏的操。