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| Keywords: Phylogenetic tree.ru.svg A phylogenetic tree of living things based on RNA data and proposed by Carl Woese showing the separation of bacteria archaea and eukaryotes Trees constructed with other genes are generally similar although they may place some early-branching groups very differently thanks to long branch attraction The exact relationships of the three domains are still being debated as is the position of the root of the tree It has also been suggested that due to lateral gene transfer a tree may not be the best representation of the genetic relationships of all organisms For instance some genetic evidence suggests that eukaryotes evolved from the union of some bacteria and archaea one becoming the nucleus and the other the main cell http //nai arc nasa gov/library/images/news_articles/big_274_3 jpg NASA Astrobiology Institute found in http //nai arc nasa gov/news_stories/news_detail cfm ID 274 an article Original September 2006 Russian version May 27 2007 Original Eric Gaba Sting Russian version Alexei Kouprianov Public domain English original version Phylogenetic tree svg French version Phylogenetic tree-fr svg Hungarian version Phylogenetic tree hu svg Spanish version Phylogenetic tree-es png Ukrainian version Phylogenetic tree uk svg bitmap version PhylogeneticTree png ValidSVG made with Inkscape Phylogenetic tree of life Russian | ||||
