Microbes have played important roles in genetics and in the discovery of DNA as the genetic material.What discoveries depended on bacteria
A)The ability of a previously harmless bacterium to change into a disease-causing bacterium was due to DNA acquisition.
B)The discovery of the intracellular reproduction of tobacco mosaic virus.
C)The development of the microscope.
D)The identification of a virus that causes yellow fever.

Question

Quizplus · Accepted Answer

The transformation principle, discovered by Frederick Griffith in 1928, demonstrated that a harmless strain of Streptococcus pneumoniae could be transformed into a virulent strain by exposure to the DNA of a virulent strain. This was a pivotal moment in genetics, showing that DNA could transfer genetic information and was a key step towards identifying DNA as the genetic material.

Microbes Have Played Important Roles in Genetics and in the Discovery