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。523Please respect copyright.PENANAKci7Yx6stE523Please respect copyright.PENANAFF2y1Xir3J
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而這些染色體、亦即是DNA,將會收藏在細胞裡的細胞核。523Please respect copyright.PENANAU90vkwmACz
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(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。523Please respect copyright.PENANADYKyWmaNcL523Please respect copyright.PENANA6oPfKdA8Tr
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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。523Please respect copyright.PENANAQVKuy1Lz0z
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(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)。523Please respect copyright.PENANABoKR00pYl2523Please respect copyright.PENANAqlWlX8Hcj6
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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。523Please respect copyright.PENANAbpuJFpI2JD
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(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。523Please respect copyright.PENANAUVFljfLr9U523Please respect copyright.PENANAojiqH9WYJS
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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。523Please respect copyright.PENANAAz0mA41af9
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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。523Please respect copyright.PENANAWQjQBUHF1Q
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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。523Please respect copyright.PENANAk6z6sL5U2B
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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/toc523Please respect copyright.PENANAE3NMZQ8xRe
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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。523Please respect copyright.PENANAPVsGGbdH71
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Link:523Please respect copyright.PENANAioEYKBDR2v
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio523Please respect copyright.PENANAVqMdfoAcxL
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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。523Please respect copyright.PENANAMcjxJ0E4mH
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Ref1:https://www.nature.com/articles/s41586-021-03417-2523Please respect copyright.PENANAiYL8AhNAXt