EPISODE · Jul 30, 2025 · 9 MIN
2025 biology talkshow: DNA粗萃取實驗分析 (高一生物)
from 雷比特生物空中講 · host 雷比特老師
說明DNA粗萃取的原理與步驟，旨在讓聽眾理解如何從生物樣本中分離出遺傳物質。首先闡述此實驗的重要性及其在現代生物科技中的應用，接著深入解釋細胞破碎、雜質移除和DNA沉澱三大核心原理。文中還逐一介紹了洗碗精、蛋白酶（如鳳梨汁）、鹽巴和冰酒精等關鍵材料在實驗中的科學作用。最後，透過以花椰菜為例的六個詳盡步驟，清楚地解析了物理研磨、細胞裂解、過濾、蛋白質分解、DNA沉澱，乃至最終的收集過程，揭示了DNA「鹽溶」與「鹽析」的關鍵角色，讓讀者能親手「釣取」出肉眼可見的生命藍圖。 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 https://g.co/gemini/share/15e1bc3da04b Powered by Firstory Hosting
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2025 biology talkshow: DNA粗萃取實驗分析 (高一生物)
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