塩えん基き置ち換かん

noun

base substitution

Technical term in molecular biology referring to the replacement of one nucleotide base with another in a DNA or RNA sequence.

• この遺い伝でん子し変へん異いは一いち塩えん基き置ち換かんによって引ひき起おこされる。

  This genetic mutation is caused by a single base substitution.