16.1 Introduction Retroposon is a transposon that mobilizes via an rna form the dna element is transcribed into rna. and then reverse transcribed into dna. which is inserted at a new site in the genome 消当Retroposon is a transposon that mobilizes via an RNA form; the DNA element is transcribed into RNA, and then reverse￾transcribed into DNA, which is inserted at a new site in the genome. 16.1 Introduction