noun
point mutation
Technical term in genetics for a mutation affecting a single nucleotide base.
点突然変異は、DNAの一塩基が置き換わることで起こる。
A point mutation occurs when a single nucleotide base in DNA is replaced.
General term for 'mutation'; 点突然変異 specifies a mutation at a single point.
Compound of 点 (point) + 突然変異 (mutation), a calque from English 'point mutation'.