Retrotransposons are first transcribed into an RNA intermediate.
B.
Next, a double-stranded DNA copy of this RNA is synthesized by the enzyme reverse transcriptase. This DNA copy is then inserted into the target location, which can be on either the same or a different DNA molecule.
C.
The donor retrotransposon remains at its original location, so each time it transposes, it duplicates itself.
D.
These mobile genetic elements are called retrotransposons because at one stage in their transposition their genetic information flows backward, from RNA to DN