What Type of Transposon is an IS Element

Question

What type of transposon is an IS element?
A) Cut and paste transposon
B) Replicative transposon
C) Retrovirus-like transposon
D) Retrotransposon
E) All of these

Accepted Answer

IS elements are cut and paste transposons. They contain transposase genes that catalyze their excision from the original site and integration at a new site by a cut and paste mechanism.