Genetics Quiz

Who was the geneticist that first showed evidence that genes are located on chromosomes?

• James Watson

• Francis Crick

• T. H. Morgan

• Rosalind Franklin

What were the two main candidates for genetic material in the early 20th century?

• RNA and protein

• DNA and protein

• Lipids and carbohydrates

• RNA and lipids

How was the role of DNA in heredity first discovered?

• By studying plants

• By studying bacteria and viruses

• By studying mammals

• By studying fungi

Who conducted the research that began the discovery of the genetic role of DNA?

• James Watson

• Frederick Griffith

• Rosalind Franklin

• Francis Crick

In Frederick Griffith's experiment, what was the result when mice were injected with living S cells?

• Mouse healthy

• Mouse dies

• No effect

• Mouse becomes immune

What was the outcome when mice were injected with a mixture of heat-killed S cells and living R cells in Griffith's experiment?

• Mouse healthy

• Mouse dies

• No effect

• Mouse becomes immune

What are viruses that infect bacteria called?

• Bacteriophages

• Retroviruses

• Prions

• Viroids

What is the genetic material of a virus typically composed of?

• DNA (but sometimes RNA)

• Proteins

• Lipids

• Carbohydrates

How have bacteriophages been used in scientific research?

• As tools in molecular genetics

• As antibiotics

• As vaccines

• As fertilizers

Who demonstrated that DNA is the genetic material of a phage known as T2?

• James Watson and Francis Crick

• Alfred Hershey and Martha Chase

• Rosalind Franklin and Maurice Wilkins

• Gregor Mendel and Thomas Hunt Morgan