Genetic Material Quiz

What were the early candidates for genetic material?

• DNA and protein

• RNA and protein

• DNA and RNA

• Protein and lipids

Why were proteins considered early favorites for genetic material?

• They were easier to study

• They were seen as having great variety

• They were more abundant in cells

• They were more stable than DNA

Why was DNA not initially seen as a likely genetic material?

• It was too complex to study

• It was not abundant in cells

• Little was known about it

• It was unstable

What are the two different strains of bacteria mentioned in the Griffith Experiment?

• Virulent and non-virulent

• Aerobic and anaerobic

• Gram-positive and Gram-negative

• Pathogenic and non-pathogenic

What happened when heat-killed virulent bacteria were mixed with non-virulent bacteria in the Griffith Experiment?

• The non-virulent bacteria remained non-virulent

• The non-virulent bacteria became virulent

• The virulent bacteria revived

• The bacteria died

What was transmitted to the offspring of the newly virulent bacteria in the Griffith Experiment?

• Non-virulence

• Heat resistance

• Virulence

• Antibiotic resistance

What conclusion did Griffith reach regarding the transmission of virulence?

• It was due to a change in temperature

• It was due to a chemical responsible for virulence transmission

• It was due to a mutation in the bacteria

• It was due to the presence of oxygen

What type of viruses were used in the Hershey-Chase experiment?

• Bacteriophages

• Retroviruses

• Adenoviruses

• Influenza viruses

What are viruses composed of according to the Hershey-Chase experiment setup?

• Only protein

• Only nucleic acid

• Nucleic acid surrounded by protein

• Lipids and carbohydrates

How do viruses replicate according to the Hershey-Chase experiment setup?

• By dividing themselves

• By injecting genetic material into bacteria and using bacterial machinery

• By fusing with other viruses

• By absorbing nutrients from the environment