Hershey and Chase Experimented with Radioactively Labeled Phosphorus and Sulfur

question 20

Multiple Choice

Hershey and Chase experimented with radioactively labeled phosphorus and sulfur to determine that DNA and not protein is the genetic material. Which of the following was essential to the success of the experiment?

• A) Sulfur is present in amino acids in the protein coat of bacteria.
• B) Phosphorus is present in high amounts in DNA.
• C) Sulfur is not present in DNA.
• D) Phosphorus is not present in amino acids in the protein coat of bacteria.
• E) All of the answer choices describe information that was necessary for the success of the experiment.

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Definitions:

Behavioural Response

An individual's reactions or actions in response to external or internal stimuli.

Psychological Response

An individual's emotional or mental reaction to a specific stimulus or situation.

Physiological Response

A body's automatic reaction that involves physical or chemical changes due to stimuli, including stress, excitement, temperature changes, or exercise.

Mindfulness

A mental state achieved by focusing one's awareness on the present moment, while calmly acknowledging and accepting one's feelings, thoughts, and bodily sensations.