Exploring Griffith's Transformation Experiment

In what year did Griffith conduct his famous experiment?

• 1948

• 1958

• 1928

• 1938

What are the two strains of Streptococcus pneumoniae mentioned?

• Smooth and Rough

• High and Low

• Fast and Slow

• Hard and Soft

What does the capsule do for the smooth strain?

• Makes it colorful

• Helps it move faster

• Protects against the immune system

• Makes it larger

What was the result when heat-killed smooth strain cells were injected into mice?

• The mice died

• The mice became ill but survived

• The mice remained healthy

• The mice developed superpowers

What surprising outcome occurred when heat-killed smooth strain cells were mixed with live rough strain cells and injected into mice?

• The mice developed immunity

• The mice became invisible

• The mice died

• The mice turned blue

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What did Griffith call the phenomenon observed in his experiment?

• The survival principle

• The mutation principle

• The magical principle

• The transforming principle

What was the main discovery of Avery, MacLeod, and McCarty's experiments?

• Lipids are the genetic material

• DNA is the genetic material

• Proteins are the genetic material

• RNA is the genetic material

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What did Griffith's experiment demonstrate about the rough strain of Streptococcus pneumoniae?

• It can fly

• It is not affected by the immune system

• It is immune to heat

• It can transform into a smooth strain

Who identified DNA as the transforming principle?

• Watson and Crick

• Darwin and Wallace

• Avery, MacLeod, and McCarty

• Mendel and Morgan