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according to evolution theory of Charles Darwin life started from a unicellular organism which then later converted to more complex organism. then from where did that unicellular organism got life ?
Simple organic molecules, similar to the nucleotide, are the building blocks of life and must have been involved in its origin. Experiments suggest that organic molecules could have been synthesized in the atmosphere of early Earth and rained down into the oceans. RNA and DNA molecules — the genetic material for all life — are just long chains of simple nucleotides.


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