Microbial Recombination and Gene Transfer - Medical Science

Q1:

What is the term used for a segment of DNA with one or more genes in the centre and the two ends carrying inverted repeat sequences of nucleotides?

A Plasmid

B Transposon

C Insertion sequence

D None of these

ANS:B - Transposon

I think the answer will be C: insertion sequence.

For example attenuator in trp operon where a sequence of U and U represents inverted repeat seq, and the inner carries strongly paired nucleotides.