Before Watson and Crick Built Their DNA Model, the American

question 5

Multiple Choice

Before Watson and Crick built their DNA model, the American chemist and Nobel laureate Linus Pauling proposed a triple-helix model for DNA.What evidence convinced Watson and Crick to reject this model for the double-helix model?

• A) Franklin's X-ray crystallography
• B) Chargaff's observations of base pairing
• C) Avery's studies of DNA as the transforming agent
• D) The Hershey and Chase blender experiment
• E) Studies examining the stability of DNA

Understand the core components and evaluation system of reality therapy.

Recognize the significance of personal responsibility and choice in improving life conditions according to reality therapy principles.

Identify and describe evidence-based mindfulness and cognitive-behavioral approaches, including their target issues and client populations.

Explain operant conditioning and its impact on behavior modification.

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Definitions:

Diastolic Blood Pressure

The pressure in the arteries when the heart rests between beats, considered the lower number in a blood pressure measurement.

Response Variable

The variable in an experiment or study that is affected by the manipulation of the independent variable, also known as the dependent variable.

Low Dosage

A smaller amount of a particular substance administered than is typical or recommended.

Severe Depression

A level of depression characterized by intense symptoms such as significant loss of interest in activities, extreme sadness, and possible physical symptoms that disrupt daily functioning.