A nonspore-forming, gram-positive bacillus was isolated from a throat specimen from a primary school-aged child who had not been vaccinated with the DTaP vaccine. The strain isolated carried a bacteriophage on which the gene for toxin was encoded. How did this strain become toxigenic?
Correct Answer: Transduction
Description: Transduction (d) is the transfer of DNA mediated by bacteriophages. In generalized transduction, the phage virus can carry any segment of the donor chromosome; in specialized transduction, the phage carries only specific genes, generally those immediately adjacent to the site of prophage insertion.
Category:
Microbiology
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now