5 Questions
What was Griffith's surprising observation in his experiment?
The heat-killed, S-type bacteria transformed into live, disease-causing bacteria.
What did Griffith conclude was responsible for changing harmless bacteria into disease-causing ones?
Information contained in the heat-killed, S-type cells passed onto the living R-type cells.
Why did Griffith refer to the process as 'transformation'?
Harmless bacteria were permanently changed into disease-causing ones.
Why did Griffith conclude that the transforming factor had to be a gene?
The offspring of the transformed bacteria inherited the ability to cause disease.
What was Griffith's main inference about how the disease-causing ability passed from heat-killed bacteria to harmless ones?
The chemical compound contained information that permanently changed harmless bacteria.
Explore the history of genetics discovery including the role of British scientist Frederick Griffith and the search for the chemical nature of genes. Learn about the pivotal moment that led to a better understanding of genetics.
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