If Hershey and Chase Had Used Radioactive Oxygen in Their

question 23

Multiple Choice

If Hershey and Chase had used radioactive oxygen in their experiments instead of phosphorus and sulfur, what results would they have likely obtained?

• A) They would have observed a radioactive signal in the pellet only.
• B) They would have observed a radioactive signal in the liquid only.
• C) They would have observed a radioactive signal in both the pellet and the liquid.
• D) They would have not observed radioactivity anywhere.

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Definitions:

Recessive Gene

A genetic trait that is expressed only when two copies of the gene are present, often overshadowed by a dominant counterpart.

Sickle Cell

A genetic blood disorder that results in red blood cells assuming a sickle shape, leading to problems such as pain, infections, and anemia.

Recessive Gene

A type of gene that is not expressed in the phenotype unless two copies of the gene (one from each parent) are present.

Huntington's Disease

A genetic disorder that causes the progressive breakdown of nerve cells in the brain, affecting an individual's functional abilities and leading to cognitive decline and psychiatric issues.