Sentences with phrase «primitive eukaryotic organism»
Contained within all eukaryotic cells, mitochondria possess their own DNA due to their evolutionary history as an «enslaved» bacterium swallowed up billions of years ago by a primitive eukaryotic organism.
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The consensus on the evolution of primitive life is that simple life forms (prokaryotes, organisms whose cells lack a distinct nucleus) inhabited the Earth about 3 - 4 billion years ago, eukaryotic cells (those with a nucleus which contains the genetic material) emerging 2 - 3 billion years ago.
We could fairly posit that the evolutionary origin of the eukaryotic cell was «the first time that what went around came around», a quid pro quo with among primitive organisms in deep time.