Four of the Following are Characteristics of Viruses

Question

Four of the following are characteristics of viruses.Which one is the exception?  
A) The outer coats of all viruses are alike.
B) The virus contains either DNA or RNA at its core, but not both.
C) Viruses infect organisms in all three domains of life.
D) Most viruses have a protein coat or covering.
E) Viral envelopes consist of host cell membrane.

Accepted Answer

The outer coats (also known as capsids) of viruses can vary greatly in their structure and composition, depending on the type of virus. Some viruses have capsids that are symmetrical and composed of a single type of protein, while others have asymmetrical capsids made up of multiple types of proteins.