Which of the Following are Encoded by the Genes in Tn3

Question

Which of the following are encoded by the genes in Tn3 elements?
A) Transposase
B) Beta lacatamase
C) Resolvase
D) Transposase and Beta lacatamase
E) All of these

Accepted Answer

Tn3 elements encode for transposase, which is necessary for their movement within genomes; beta-lactamase, which provides resistance to beta-lactam antibiotics; and resolvase, which is involved in the resolution of cointegrate structures formed during transposition. Therefore, all of these are encoded by genes in Tn3 elements.