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8 questions
Who were the two scientists at the center of this story?
Isaac Newton and Albert Einstein
Marie Curie and Charles Darwin
Gregor Mendel and Rosalind Franklin
Alfred Hershey and Martha Chase
What were Alfred Hershey and Martha Chase trying to discover?
The process of photosynthesis
The function of mitochondria
The genetic instructions carried by DNA
The structure of the atom
What did Alfred and Martha label the viral DNA with, and why?
Radioactive sulfur-35 (S-35) to track its movement
Radioactive phosphorus-32 (P-32) to track its movement
Fluorescent dye to visualize it under a microscope
Enzymes to enhance its replication
How did they label the protein coat of the virus?
With radioactive phosphorus-32 (P-32)
With fluorescent dye
With radioactive sulfur-35 (S-35)
With enzymes
What did Alfred and Martha hope to determine with their experiment?
The structure of the atom
The function of mitochondria
The process of photosynthesis
Whether DNA or proteins carried the genetic instructions
Describe the process Alfred and Martha used to separate the virus particles from the bacteria.
Heating the bacteria to high temperatures
Using a microscope
Spinning the infected bacteria in a blender
Freezing the bacteria
What were the results of their experiment, and what did it indicate about the hereditary material?
The radioactive S-35 ended up inside the bacteria, indicating proteins as the hereditary material
Neither radioactive label ended up inside the bacteria, indicating neither DNA nor proteins as the hereditary material
The radioactive P-32 ended up inside the bacteria, indicating DNA as the hereditary material
Both radioactive labels ended up inside the bacteria, indicating a mix of DNA and proteins as the hereditary material
How did the experiment by Hershey and Chase contribute to our understanding of genetics?
It proved the existence of mitochondria
It discovered the structure of the atom
It provided evidence that DNA is the hereditary material
It explained the process of photosynthesis
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