Which of the Following Mechanisms Explain How Reovirus MRNAs Acquire

question 19

Multiple Choice

Which of the following mechanisms explain how reovirus mRNAs acquire their poly(A) tail?

• A) They do not have poly(A) tails but use other sequences to functionally substitute.
• B) Cellular enzymes add the poly(A) tail
• C) Viral enzymes in the virion core add the poly(A) tail.
• D) The encode a poly(A) tail in each genome segment.
• E) The RNA polymerase stutters at a poly(U) region at the end of each genome segment.

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Definitions:

Psychological Dependence

The feeling that a drug is needed to continue a feeling of emotional or psychological well-being.

Physiological Dependence

A condition characterized by the bodily reliance on a substance, where absence of the substance causes withdrawal symptoms.

Marijuana

Mild hallucinogen (also known as “pot” or “weed”) derived from the leaves and flowers of a particular type of hemp plant.

Endorphins

Endorphins are neurotransmitters produced by the brain that act as natural painkillers and mood elevators, often released in response to stress or physical activity.