retrotransposition

Alternatively, a new version of a gene can also be created through reverse transcription: during gene expression, the mRNA is copied back into a sequence of DNA that is inserted into the genome.

其二，新的复本也可能透过反转录作用，将现出来的mRNA反转录成DNA序列，再插回组内，这种现象称为反转录移（retrotransposition），在细胞内称为长散布核子（LINE）的转子活动时。