Universal Ancestor

A phylogenetic term for organisms at or below the divergence or branching between progenotes—which have rudimentary translation machinery—and genotes—which have modern translation machinery; the division is based on the ‘evolutionary clock,’ by which organisms are classified according to the evolution of the ribosomal RNA molecule
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The surprisingly large extent of gene swapping has researchers asking whether comparisons of genes indicate how closely related different microbes are and if such analyses can truly point the way back to a universal ancestor.
It appears that, at the time that the universal ancestor of all life gave rise to the primary lineages, the aminoacyl-tRNA synthetases had not achieved as settled an evolutionary condition as is generally assumed.
But though drab as myth, the origin of life is supreme among scientific mysteries, and a notable stride now has been taken toward understanding the nature of what scientists call the universal ancestor, the living cell that lies at the root of the tree of evolution.
With three points of triangulation, scientists can start to work backward to figure out features of the universal ancestor cell of the three kingdoms.
The nature of the last universal ancestor and the root of the tree of life, still open questions.
They learned that the universal ancestors of the Philippines reside in the kulintang, an instrument consisting of eight gongs that figured prominently in the band.
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