21. Actin is one of the main cytoskeletal proteins in eukaryotic cells. 22. This entry also identifies matrix proteins from several eukaryotic endogenous retroviruses. 23. The model entry describes a protein domain in longer eukaryotic proteins. 24. The twister ribozyme is present in certain bacterial and eukaryotic organisms. 25. Microalgae are algae, which are eukaryotic while cynobacteria are prokaryotic. 26. Eukaryotic flagella is ATP driven, while prokaryotes are proton driven.27. Prokaryotic chromosomes and plasmids are, like eukaryotic DNA, generally replication. 28. Within eukaryotic cells, DNA is organized into long structures called chromosomes. 29. In eukaryotic replication, the primase forms a complex with Pol ?. 30. Walther Flemming's 1882 diagram of eukaryotic cell division.
