The Double Helix of DNA Is Which Level of Structure

question 50

Multiple Choice

The double helix of DNA is which level of structure?

• A) primary
• B) secondary
• C) tertiary
• D) quaternary
• E) None of these

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Definitions:

Cognitive Development

The process through which a person learns to reason, solve problems, and understand concepts.

Affordances

Refers to the actional properties of objects—their nature, opportunities, and limits.

Habituation

The process of becoming accustomed to a stimulus after repeated exposure, leading to a decrease in response.

Voluntary Reaching

The deliberate extension of the arm and hand towards an object, seen as a key developmental milestone in infants.