How are Tn3 Elements Classified

Question

How are Tn3 elements classified?
A) Cut and paste transposon
B) Replicative transposon
C) Retrotransposon
D) Retrovirus-like transposon
E) All of these

Accepted Answer

Tn3 elements are classified as replicative transposons because they replicate themselves before inserting into a new location in the genome, unlike cut and paste transposons which move without replication. They are not classified as retrotransposons or retrovirus-like transposons, which involve reverse transcription of RNA into DNA.