All of the following pertain to virus envelopes EXCEPT:

The focus of this question is on the characteristics and functions of virus envelopes. In understanding these envelopes, it is important to recognize their structural relationship to the rest of the virus.

Viruses that possess envelopes are composed of a lipid bilayer derived from the membranes of host cells. This envelope surrounds the capsid, which is the protein coat of the virus, and encapsulates the viral nucleic acid (genetic material). The envelope plays significant roles in the virus's ability to infect host cells and provides some protection to the viral genome.

The statement regarding the location of the envelope is key. The envelope does not exist between the capsid and the nucleic acid; rather, it surrounds the capsid itself. The capsid is the inner layer that immediately encases the nucleic acid, while the envelope wraps around the capsid. This makes the assertion that the envelope is located between the capsid and nucleic acid inaccurate.

By understanding these aspects, it is clear why the location described in the statement is not true, affirming it as the correct choice for the exception.