[問題] 我身上有很多種不同的基因嗎?
【問題】:一個人身上有六十兆個細胞,每九個月更換一次,每一次更換都是
一次突變的機會,另外也有許多環境因素會在平常使得基因產生突變。我身上
的基因可能也有數次突變,這些細胞再分裂成更多個細胞,而恆長地存在身體
裡面。所以,即使大概都只是一、兩個DNA的不同,但這些不同的基因也都同
時存在我的身體裡面吧?
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