Integrons are:
A) Circular structures present in bacteria that contain genes encoding proteins and RNA and have the capacity to self-replicate and portion into daughter cells during cellular division
B) DNA elements that encode transposition and excision function and can transpose from one place on the chromosome to another.
C) Genetic elements capable of integrating resistance genes (cassettes) by an integron-encoded, site-specific recombinase
D) DNA elements found in bacteria that carry genes only for the enzymes needed to promote their own transposition

Question

Quizplus · Accepted Answer

Integrons are genetic elements and have the capacity of integrating resistance genes by an integron-encoded,site-specific recombinase.The integron in Tn21 does not code for its own mobilization but can be moved when transposition proteins are provided in trans; is bound by imperfect terminal inverted repeats; contains the aadA1-resistant determinant on a cassette.

Integrons Are