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 So what do you need?
• Miller-Urey experiment
• Unanswered questions...