英语词汇“substitution mutation”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	substitution mutation
释义	substitution mutation substitution mutation a mutation affecting the base sequence of a DNA molecule, in which one base is substituted for another one, with no loss or gain of base and therefore no risk of a FRAMESHIFT. A transition substitution mutation is the replacement of a PYRIMIDINE base by another pyrimidine (e.g. thymine changing to cytosine) or a PURINE by another purine (e.g. adenine replacing guanine). A transversion substitution mutation is the replacement of a pyrimidine by a purine or vice versa.
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