Question

Select the true statement.

• A. Virion is the complete virus particle in its extracellular form.
• B. Maximum diversity is found in the genome of viruses.
• C. Almost all plant viruses and phages are not enveloped.
• D. All of the above.

Answer 1

The correct option is D All of the above.

Viruses exist in two forms, extracellular and intracellular. Virion is the complete virus particle in its extracellular form. It contains capsid surrounding the nucleic acid. Intracellular form is present inside the cell. In this form, only nucleic acid is present without capsid. Maximum diversity is found in the genome of viruses as they are made up of RNA and RNA has higher error-rate in replication. Almost all plant viruses and phages are not enveloped. They are also called as naked viruses.

Thus, the correct answer is option 'All of the above'.