Griffith's Bacterial Transformation Experiment

What was the result when Griffith injected mice with the R strain of bacteria?

• The mice developed pneumonia and died.

• The mice remained healthy.

• The mice developed a different disease.

• The mice showed temporary symptoms of illness.

What happened to the mice when they were injected with heat-killed S strain bacteria mixed with live R strain bacteria?

• The mice remained healthy.

• The mice developed pneumonia and died.

• The mice showed no significant change.

• The mice developed a different disease.

What conclusion did Griffith reach from his experiment involving S strain and R strain bacteria?

• Heat-killing bacteria makes them harmless permanently.

• Genetic material from S bacteria can transform R bacteria into a deadly form.

• R strain bacteria are naturally resistant to heat.

• S strain bacteria cannot transmit pneumonia after being heat-killed.

What happens to the mouse when it is injected with the rough strain of bacteria?

• The mouse lives

• The mouse dies

• The mouse becomes temporarily ill

• The mouse shows no change

What is the outcome for the mouse when injected with the smooth strain of bacteria?

• The mouse lives

• The mouse dies

• The mouse becomes immune

• The mouse multiplies

What is the result when a mouse is injected with heat-killed smooth strain bacteria?

• The mouse lives

• The mouse dies

• The mouse becomes virulent

• The mouse develops a rough strain

What occurs when a mouse is injected with a mixture of rough strain and heat-killed smooth strain bacteria?

• The mouse lives

• The mouse dies

• The mouse becomes immune to both strains

• The mouse shows no symptoms

What was the "transforming agent" identified by Avery in his experiments based on Griffith's findings?

• RNA

• Protein

• DNA

• Lipids

What did Avery aim to determine through his experiments?

• The effect of temperature on bacterial growth

• Whether DNA, RNA, or protein was the genetic material

• The role of carbohydrates in bacterial transformation

• The impact of enzymes on genetic stability

What was the primary conclusion of the Hershey and Chase experiment?

• DNA is not necessary for viral replication.

• Protein is the genetic material of viruses.

• DNA is the molecule that holds genetic information.

• RNA is the molecule that holds genetic information.