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原文連結
論文資訊
- 類型：已發表論文
- 日期：2023-12-12
摘要
We present a simple 數學 model that captures the 演化ary capabilities of a prebiotic compartment or protocell. In the model, the protocell contains an autocatalytic set whose chemical dynamics is coupled to the growth–division dynamics of the compartment. Bistability in the dynamics of the autocatalytic set results in a protocell that can exist with two distinct growth rates. 隨機ity in chemical reactions plays the role of 突變s and causes transitions from one growth regime to another. We show that the system exhibits ‘自然選擇’, where a ‘mutant’ protocell in which the autocatalytic set is active arises by chance in a 族群 of inactive protocells, and then takes over the 族群 because of its higher growth rate or ‘fitness’. The work integrates three levels of dynamics: intracellular chemical, single protoce
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