Which of the Following Correctly Describes the Structure of the DNA

question 18

Multiple Choice

Which of the following correctly describes the structure of the DNA double helix?

• A)The bases are in the center of the double helix and do not contact the surrounding water.
• B)2-Deoxyribose forms O-glycosidic bonds.
• C)All hydroxyl groups of 2-deoxyribose are tied up in covalent bonds.
• D)The purine and pyrimidine bases carry positive charges at a pH of 7.
• E)The double helix can interact with proteins mainly through hydrophobic interactions.

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Definitions:

Frontal Lobe

The part of the brain located at the front of each cerebral hemisphere, responsible for problem solving, judgment, and motor function.

Impulsivity

The tendency to act on a whim, displaying behavior characterized by little or no forethought, reflection, or consideration of the consequences.

Functional Connectivity

The temporal correlation between spatially remote neurophysiological events, often measured in brain imaging studies.

Cortex Mapping

A method used to identify the functions of different regions of the cerebral cortex.