prokaryote

/proh-kar-ee-oht, -ee-uht/US // proʊˈkær iˌoʊt, -i ət //UK // (prəʊˈkærɪɒt) //

原核生物,原核细胞,原核生物体,原核生物界

Definitions

n.名词 noun

1
Biology.
- : any cellular organism that has no nuclear membrane, no organelles in the cytoplasm except ribosomes, and has its genetic material in the form of single continuous strands forming coils or loops, characteristic of all organisms in the kingdom Monera, as the bacteria and blue-green algae.

Because archaea are relatively simple prokaryotes with small genomes, “I don’t think that the original role of histones was to control gene expression, or at least not in a manner that we are used to from eukaryotes,” Warnecke said.