Alfred Hershey and Martha Chase Examined Transformation Using Bacteriophage (Bacterial

question 49

Multiple Choice

Alfred Hershey and Martha Chase examined transformation using bacteriophage (bacterial DNA virus) and bacterial cells.In these experiments,they used radioactivity to label nucleic acids (in this case DNA) and proteins.What do radioactive sulfur and phosphate specifically label?

• A)Sulfur labels DNA,and phosphate labels protein.
• B)Sulfur labels both protein and DNA.
• C)Phosphate labels both protein and DNA.
• D)Sulfur labels protein,and phosphate labels DNA.
• E)None of the answer options are correct.

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Definitions:

Freudian Approaches

Psychological theories and treatments developed by Sigmund Freud, emphasizing unconscious processes and childhood experiences.

Distortion

The alteration of reality or perception in a way that leads to misconception or a skewed understanding.

Denial

A defense mechanism where an individual refuses to accept reality or facts, thereby avoiding facing uncomfortable truths.

Psychological Protections

Mechanisms or strategies used by individuals to defend themselves against perceived threats to their emotional well-being or self-esteem.