我們身體細胞的DNA,會經過不同蛋白質的幫助下接疊以及壓縮,成為名為染色體(Chromosome)的結構。464Please respect copyright.PENANARm9lWzH1Td464Please respect copyright.PENANAf5kiUy2EWg
464Please respect copyright.PENANARknAdBuYSC
而這些染色體、亦即是DNA,將會收藏在細胞裡的細胞核。464Please respect copyright.PENANA5kXD9zihHO
464Please respect copyright.PENANAkI5WfqRqbh
464Please respect copyright.PENANA8VR5YkSJwF
(圖2)細胞進行自我複製時,將會複製自己的DNA,並會暫時性將細胞核的外膜消除。464Please respect copyright.PENANAq8bzt6vswL464Please respect copyright.PENANAUcYQjoSnnT
464Please respect copyright.PENANA9bQxxzpoEc
被複製的DNA會排在中間,然後經由線狀結構(綠色)往左右兩方邁進。464Please respect copyright.PENANA31NSB6LNk8
464Please respect copyright.PENANAS9OiXFaNaf
464Please respect copyright.PENANAR5Nu71iXPU
(圖3)往左右兩方邁進的染色體,有時候會出現跑得較為慢的染色體(圖中藍色箭嘴)。464Please respect copyright.PENANAWMubsy1G4K464Please respect copyright.PENANAuR5yHYJwJ3
464Please respect copyright.PENANAzAjuAhNdH2
落後於人的染色體,最終有機會無法加入正常大隊,並自立一閣形成名為micronucleus的結構。464Please respect copyright.PENANA9q7WWt9Pkw
464Please respect copyright.PENANAtjlSoeFp4D
464Please respect copyright.PENANAvvbAV3G1aB
(圖4)這些名為micronucleus的結構,基於其外膜的發展並不完善,因此非常容易會出現損壞的情況。464Please respect copyright.PENANAylXUt514py464Please respect copyright.PENANANk7mgCm1Hj
464Please respect copyright.PENANArTKEBJ1OOn
當外膜受到損毀,裡頭的DNA有極大機會遭受襲擊,因此出現變異的情況。464Please respect copyright.PENANAFfpMccPbMP
464Please respect copyright.PENANAEzkFM9o6Aq
而這些變異的DNA,往往就是讓正常細胞發展成為癌細胞的契機。464Please respect copyright.PENANAORs6qzNPp8
464Please respect copyright.PENANAYxREBUpcep
464Please respect copyright.PENANAzY6W2dM2eD
464Please respect copyright.PENANAiTqlkaKX7N
如果想我快啲出文的話,請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark,這對我非常之重要。464Please respect copyright.PENANAXROOFCquWT
464Please respect copyright.PENANA6FDmLOGcE5
Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc464Please respect copyright.PENANAoPLHZBuoDi
464Please respect copyright.PENANAWLTGTHvGG1
同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」,以課金的方式推動我繼續搜羅資料寫文,多謝。464Please respect copyright.PENANAXOovd1XLP2
464Please respect copyright.PENANAuAxGFVti2X
Link:464Please respect copyright.PENANA6eGLRDQ2CQ
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio464Please respect copyright.PENANA3mw0urDa8Q
464Please respect copyright.PENANA5Fg7jd983N
464Please respect copyright.PENANAdPNXpFS7sI
除非Facebook及IG重開侵侵的account,否則我的IG將不會再作更新,只會寄居本土LIHKG及Penana。464Please respect copyright.PENANAK4VJI4anSg
464Please respect copyright.PENANAd7dsNxyMeZ
Ref1:https://www.nature.com/articles/s41586-021-03417-2464Please respect copyright.PENANA2vLpnlQDKJ
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科普專欄–薯不揀單
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薯仔聞茱莉

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三十秒科學–染色體自成一閣
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