| The DNA of a prokaryotic cell consists of a single chromosome that is in direct contact with the cytoplasm. |
| This is a region of highest conservation, which consists of amino acids that are identical in both the prokaryotic and eukaryotic homologs. |
| Among the deaminated bases, uracil, hypoxanthine and Xan are repaired by the base excision repair pathway in prokaryotic and eukaryotic cells. |
| Recently, large numbers of new retinal proteins were discovered in both prokaryotic and eukaryotic organisms. |
| This reaction and similar ones occur in a number of unrelated organisms, both prokaryotic and eukaryotic. |
| Another characteristic feature that distinguishes eukaryotic from prokaryotic genes is the presence of introns. |
