…However, DNA changes can also occur in somatic cells. This is called a somatic mutation. In this case, the mutation is not passed on to future generations, but its effects are limited to that generation and to the parts of the body that are made up of cells that have the mutation. The biological significance of somatic mutations is not fully understood, but the prevailing theory is that the aging of an organism is due to the accumulation of somatic mutations. … *Some of the terminology used to refer to "somatic mutation" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…しかし,DNAの変化は体細胞にも起こりうる。これを体細胞突然変異somatic mutationと呼ぶが,この場合,突然変異は次代には伝わらず,その影響はその世代限りであり,しかも,その突然変異をもつ細胞で形成されている身体の部分に限られる。体細胞突然変異の生物学的意義は完全には理解されていないが,生物の老化が体細胞突然変異の蓄積に起因するという説が有力である。… ※「somatic mutation」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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