2025 biology talkshow : central dogma of molecular biology (5)-轉譯的執行者-核糖體 (選修生物I)

核醣體是細胞中負責製造蛋白質的「分子工廠」。首先介紹核醣體結構的解析過程，隨後，深入闡述核醣體的運作機制，將其比喻為一台「縫紉機」，詳細描述核醣體的組成、大小差異（原核生物 70S vs. 真核生物 80S），以及mRNA 如何在核醣體內精確對位。最後，文章解釋轉譯過程中的三個重要位置 (A, P, E)，核醣體的轉位移動，以及翻譯終止的機制，並提及核醣體在生命歷史中的重要地位。 Powered by Firstory Hosting

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2025 biology talkshow : central dogma of molecular biology (5)-轉譯的執行者-核糖體 (選修生物I)

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