2025 biology talkshow:帶你進場，卻不能留-篩選基因在基因轉殖中的短暫任務 (高一生物)

解釋基因轉殖技術中篩選過程的必要性與複雜性。指出由於成功轉殖的機率極低，科學家必須使用「篩選基因」（通常是抗生素抗性基因）作為「保鑣」，與目標「轉殖基因」（主角）捆綁在一起送入細胞，藉此在充滿毒藥的環境中快速篩選出成功的細胞。然而，為了確保最終產品的安全並防止「超級細菌」產生，這個已完成任務的保鑣基因必須被移除。最後，介紹兩種去除篩選基因的精密方法：利用分子剪刀系統（Cre-loxP）進行精準剪切，以及運用孟德爾遺傳定律實現「遺傳分離」，從而得到一個安全、純淨且只含有目標性狀的完美基因轉殖生物。聽完後可以自主進行線上測驗，檢視學習成效喔~(需要登入gemini) 測驗網址   Powered by Firstory Hosting

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2025 biology talkshow:帶你進場，卻不能留-篩選基因在基因轉殖中的短暫任務 (高一生物)

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