Life developed from prokaryotes into eukaryotes and multicellular forms. T4 proved to be orthologs for genes essential for recombination in prokaryotes, eukaryotes and archaea. Argonaute proteins are a family of proteins found in prokaryotes and eukaryotes. Some differences exist between eukaryotes and prokaryotes. Prokaryotes have a prokaryotic cytoskeleton that is more primitive than that of the eukaryotes. Okazaki fragments are present in both prokaryotes and eukaryotes. They are found ubiquitously in both eukaryotes and prokaryotes. Actin-like proteins are actin in eukaryotes and MreB, FtsA in prokaryotes. Another difference between eukaryotes and prokaryotes is mRNA transport. This process occurs in both eukaryotes and prokaryotes. Tubulin-like proteins are tubulin in eukaryotes and FtsZ, TubZ, RepX in prokaryotes. Prokaryotes have Okazaki fragments that are quite longer than those of eukaryotes. Plants are mainly multicellular, predominantly photosynthetic eukaryotes of the kingdom Plantae. This process is similar in eukaryotes and prokaryotes. This is consistent with the higher complexity of the genomes of eukaryotes compared to prokaryotes.