EPISODE · May 14, 2025 · 8 MIN
2025 biology talkshow : XY染色體的演化史
from 雷比特生物空中講 · host 雷比特老師
介紹X和Y染色體的演變過程，說明它們如何從遠古時期的同源染色體，經過SRY基因的出現和重組抑制，逐漸分化為決定性別的性染色體。 解釋X染色體保留大量基因並承擔多種功能，而Y染色體則變得較小且主要與雄性發育相關。此外，詳細闡述女性為了維持基因平衡而演化出的X染色體失活機制，及其在細胞層面的隨機性和對健康的影響。最後探討X和Y染色體在性別決定和遺傳方面的作用，以及它們在數億年進化中的適應性變化。 Powered by Firstory Hosting
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2025 biology talkshow : XY染色體的演化史
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