(1) The structural integrity of recombinant products generated by prokaryotic and eukaryotic organisms is a major concern.(2) These proteins are expressed by all organisms ranging from prokaryotes to higher eukaryotes, including human cells.(3) Several OYE homologues have been reported in prokaryotic and eukaryotic organisms.(4) This reaction and similar ones occur in a number of unrelated organisms, both prokaryotic and eukaryotic.(5) The difference between eukaryotes and prokaryotes is that eukaryotes have a nucleus, while prokaryotes do not.(6) Recently, large numbers of new retinal proteins were discovered in both prokaryotic and eukaryotic organisms.(7) This is a region of highest conservation, which consists of amino acids that are identical in both the prokaryotic and eukaryotic homologs.(8) Early fossils are all simple-celled prokaryotes such as bacteria and cyanobacteria.(9) Why are extragenic mutations evidently more common in viruses than in prokaryotes or eukaryotes?(10) In a few organisms called prokaryotes , there is no defined nucleus and the DNA is found throughout the cell.
