The Two DNA Chains in a Double Helix ______

question 45

Multiple Choice

The two DNA chains in a double helix ______ .

• A)have an overall diameter of 2 µm
• B)have identical base sequences
• C)are held together due to the charges of their phosphate groups
• D)wind around each other in such a way that purines are always opposite pyrimidines and vice versa
• E)are parallel to each other in 5' to 3' directionality

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Definitions:

Repression

A defense mechanism in psychoanalytic theory where unwanted or uncomfortable thoughts and memories are pushed into the unconscious mind.

Retroactive Interference

A memory phenomenon where newer information interferes with the recall of previously learned information.

Proactive Interference

A phenomenon where older memories hinder the recall of newer memories, often affecting learning processes and memory retrieval.

Retrograde Amnesia

A loss of memory-access to events that occurred or information that was learned before an injury or the onset of a disease.