What Is a Virion

question 29

Multiple Choice

What is a virion?

• A) a virus genome inside a cell
• B) an empty capsid
• C) a single virus particle outside a cell
• D) an extracellular virus genome
• E) a virus genome integrated into a host cell genome

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Definitions:

Transposons

DNA sequences that can change positions within the genome.

Mutagens

Agents, such as chemicals or radiation, that cause mutations or changes in the DNA of organisms.

Transcription Factors

Proteins that regulate the transcription of genes by binding to specific DNA sequences, thus controlling the flow of genetic information from DNA to mRNA.

RNA Polymerase

An enzyme responsible for synthesizing RNA from a DNA template during the process of transcription.