The mitochondrial DNA (mtDNA) of piranhas has an extremely high mutation rate so this was used as a basis for reconstructing the evolution of the 28 modern species of this carnivorous fish.是什么意思_The mitochondrial DNA (mtDNA) of piranhas has an extremely high mutation rate so this was used as a basis for reconstructing the evolution of the 28 modern species of this carnivorous fish.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句