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WorksheetsGriffith's Experiment
Total questions: 6
Worksheet time: 3mins
What was the purpose of heat-killing the Smooth Strain?
To make sure the Smooth Strains could not infect the mouse after heat-killing
To make sure the Smooth Strains could infect the mouse after heat-killing
To make sure the Smooth Strains could not be used in the experiment
To prepare the Smooth Strains for use in the experiment
What was Frederick Griffith’s original purpose of doing this experiment?
To find a cure for pneumonia
To test if DNA was the genetic material of bacteria
To test what the difference is between smooth and rough strains
To kill mice
What is the difference between the smooth strain and the rough strain?
The smooth strain does not have ribosomes, whereas the rough strain has ribosomes.
The smooth strain can reproduce asexually, whereas the rough strain cannot.
The smooth strain has mitochondria, whereas the rough strain does not.
The smooth strain is surrounded by a capsule, whereas the rough strain is not.
Why did the presence of both heat-killed S strain and live R strain kill the mice?
The R strain transferred genetic information to the S strain, turning it alive.
The S strain transferred genetic information to the R strain, turning it into an S strain.
The presence of the pathogenic S strain itself was enough to kill the mice.
An experimental design error caused live S strain bacteria to be injected into the mice.
When Griffith took a sample of blood from the mice injected with the heat-killed S strain and live R Strain, what did he find?
Blood contained both the live S strain and live R strain
Blood contained only the live S strain
Blood contained only the R strain
Blood contained only the heat-killed S strain
What is the transforming principle?
A rare disease in which pathogenic bacteria modify their host organism’s genes.
The evolutionary process by which morphological features of organisms change over time.
The process by which dead bacteria transfer genetic material to live bacteria, turning it into a different strain of bacteria.
All of the above.
