When Studying the Replication of Viroids and Hepatitis Delta Virus

question 12

Multiple Choice

When studying the replication of viroids and hepatitis delta virus, which of the following allows scientists to distinguish which of the three cellular RNA polymerases is required?

• A) The sub-cellular location of each RNA polymerase.
• B) Whether the polymerase requires an RNA primer or not.
• C) Whether the polymerase can synthesize mRNAs or not.
• D) Whether the polymerase will use an RNA molecule as a template.
• E) The sensitivity of the RNA polymerase to the toxin a-amanitin.

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Definitions:

Bipolar Cell

Bipolar cells are a type of neuron found in the retina, acting as an intermediary between photoreceptors that detect light and ganglion cells that transmit visual information to the brain.

Horizontal Cell

A neuron in the eye that integrates and regulates input from multiple photoreceptor cells.

Rod

Photoreceptor specialized for functioning at low light levels.

Cone

Photoreceptor specialized for color and high visual acuity.