The 3 domain system characteriOnline version Bacteria, archaea, eukarya by Elizabeth Hernandez 1 Bacteria characteristics 2 Archaea characteristics 3 Eukarya characteristics Chromosomes are circular Lacks nuclear envelopes Lacks membrane, bound, organelles Membrane lipids with branched hydrocarbons No nuclear envelopes No membrane bound organelles Methionine is the initiator amino acid for protein synthesis No peptidoglycan in cell wall Gross not inhibited by streptomycin and chloramphenicol Histones are associated with DNA Contains several types of RNA polymerase Growth not inhibited by streptomycin and chloraphenicol Contains several types of RNA polymer