Which of the following matings would have the highest frequency of chromosomal gene transfer?
A) F+ x F-
B) F' x F-
C) Hfr x F-

Question

Quizplus · Accepted Answer

Hfr x F- matings have the highest frequency of chromosomal gene transfer because Hfr bacteria have the F plasmid integrated into their chromosome, which means that during conjugation, the entire chromosome can be transferred to the F- recipient cell. In contrast, F+ x F- and F' x F- matings only transfer the F plasmid, which contains a limited amount of genetic material.

Which of the Following Matings Would Have the Highest Frequency