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Discussion of conditions for life to be possible, the importance of water, and then the appearance of oxygen about 2 billion years ago. The earliest amino acids and nucleotides were formed abiotically (without enzymes) and enabled the earliest bacterial cells to form, with the necessary building blocks to synthesize proteins and RNA. How a nonlethal mutation can become widespread is discussed.

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How Did We Get Here? Starting Conditions for Life on Earth

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  • 发表日期：

    2025年

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  • Thomas W. Traut

摘要

Discussion of conditions for life to be possible, the importance of water, and then the appearance of oxygen about 2 billion years ago. The earliest amino acids and nucleotides were formed abiotically (without enzymes) and enabled the earliest bacterial cells to form, with the necessary building blocks to synthesize proteins and RNA. How a nonlethal mutation can become widespread is discussed.