A Derivative F Plasmid That Contains Host DNA is Called

Question

A derivative F plasmid that contains host DNA is called an ________ plasmid.
A) F
B) F+
C) F-
D) F'
E) Hfr

Accepted Answer

An F' plasmid is a derivative of the F plasmid that contains some host chromosomal DNA which was transferred during conjugation. The F+ plasmid is the original F plasmid found in the donor cell and the F- plasmid is a mutant F plasmid that is unable to initiate conjugation. Hfr (high frequency of recombination) cell is a type of F+ cell in which the F plasmid has integrated into the host chromosome.