Transposable Elements That Transpose Through an RNA Intermediate Are Retrotransposons

Essay

Transposable elements that transpose through an RNA intermediate are retrotransposons. There are two types of retrotransposons: those that have direct repeats at each end, often called long terminal repeats (LTRs), and those that do not have these repeats. Pick an example of each type of retrotransposon and give (1) its basic structure and (2) its possible evolutionary history.