Biology 1001A Lecture Notes - Thalidomide, Stromatolite, Transfer Rna
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Lecture 3: Origin of Life
virophage suggects virus are alive
So, what is life?
Life developed early
•Stromatolites (3.5 billion years ago)
•Cells made of lipids
•Genetic system based on DNA
•DNA to RNA to Protein transfer of information
•Common system of protein assembly
What came before LUCA?
Prokaryotes don’t exist!
Stages of prebiotic evolution
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