Which Statement About the Molecular Architecture of DNA Is False

question 209

Multiple Choice

Which statement about the molecular architecture of DNA is false?

• A) The two strands run in opposite directions.
• B) The molecule's twist is usually right-handed.
• C) The molecule is a double-stranded helix.
• D) The molecule has a uniform diameter.
• E) All of the above are true; none is false.

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Definitions:

Sensation

The process by which sensory receptors and the nervous system receive and represent stimulus energies from the environment.

Minimal Stimulus

The smallest level of stimulation that can be detected or that elicits a response from an organism.

Absolute Threshold

The minimum intensity of a stimulus that one can detect 50% of the time, delineating the boundary between detectable and undetectable sensations.

Difference Threshold

The minimal change in stimulation that an individual can detect 50% of the time, also known as the just noticeable difference (JND).