done. There was only one way out. They had to divide the work. Replication had to be separated from translation. DNA emerged. As a result there were many "minigenes" which were modified and combined in different ways into larger assemblages that were then screened by natural selection. "To have a fully operational genetic system to develop, emerging life needed to become made into a population of multiplying by division, so that protocells, not just molecules, were subjected to natural selection." Out of this the first cell emerged. We can assume that all living organisms come from this cell, a common ancestor to all living organisms. It is overwhelming to hear this and we have to believe it as long as the opposite has been proven. The first cell must have been an organism of prokaryotic type (microorganism of bacterial type). Bacteria are built to grow and multiply as fast as materially possible that is why it was so successful to grow and evolve to complex organisms. Out of the prokaryotic cell an eukaryote cell (living organisms - compromising protists, plants, fungi, and animals, including human) must have emerged. It is uncertain how this happened. It is believed that a prokaryote cell detached from the archaebacterial branch. Many things have not been discovered about the origin of life. There are many theories and it will take a long time until everything will be determined. To this point none of the theories could be strongly proven. The most believed theory might be that life really originated chemically on earth. If one believes that life was brought to earth, either by a meteoroid or by aliens, there still is the question how life originated. Perhaps some aliens really brought us to earth, who knows?...
