Answer to Question #328192 in Genetics for Somebody

Question

List several characteristics that eubacteria and archaea have in common and that distinguish them from eukaryotes. 

Answer 1

Characteristics that eubacteria and archaea have in common:

• they belong to prokaryotic organisms;
• they have 70S ribosomes;
• they reproduce asexually by the binary fission, budding and fragmentation;
• they are found in extreme environments like hot springs and gut of humans.

Characteristics that distinguish eubacteria and archaea from eukaryotes:

• the domains Eubacteria and Archaea are composed entirely of single-celled microorganisms;
• eubacteria and archaea don't have a nucleus and organelles;
• eubacteria are sensitive to antibiotics, unlike archaea and eukaryotes;
• in eubacteria the first amino acid during protein synthesis is formylmethionine, unlike archaea and eukaryotes;
• in eubacteria and archaea DNA is represented by a circular chromosome and plasmids;
• eubacteria do not have histones in their chromosomes, unlike archaea and eukaryotes.