Which of the Following Statements About RNA Processing Is Correct

question 57

Multiple Choice

Which of the following statements about RNA processing is correct?

• A) Exons are removed before mRNA leaves the nucleus.
• B) Ribozymes may function in RNA splicing.
• C) RNA splicing can be catalyzed by tRNA.
• D) A primary transcript is often much shorter than the final RNA molecule that leaves the nucleus.

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Definitions:

Electrical Polarization

The phenomenon where in a material, or in the particles of the material, there is a separation of charge leading to one part becoming more positively charged and another part more negatively charged.

Synaptic Vesicles

Membrane-bound sacs in the synapse that store neurotransmitters and release them into the synaptic cleft to transmit neural signals between neurons.

Action Potential

A temporary reversal in the electrical polarization of the membrane of a nerve cell or muscle cell, allowing for the transmission of signals.

Threshold

The minimum level of stimulus intensity required to activate a sensory system or produce a response in a physiological or psychological system.