Genetic Material Quiz

Which two molecules were early candidates for genetic material?

• DNA and RNA

• DNA and protein

• Protein and RNA

• RNA and lipids

Why were proteins considered early favorites for genetic material?

• They were easier to study

• They were more abundant in cells

• They were seen as having great variety

• They were simpler in structure

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

• It was too complex

• It was too simple

• Little was known about it

• It was not found in all cells

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 were revived

• Both types of 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 from his experiment?

• Bacteria can only be virulent if they are alive

• Some chemical is responsible for virulence transmission

• Heat can kill all types of bacteria

• Non-virulent bacteria cannot become virulent

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 proteins

• Only nucleic acid surrounded by protein

• Only lipids

• Only 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 absorbing nutrients from the host

• By fusing with the host cell