Question

question 10
a/an ______ is the protein shell around the nucleic acid core of a virus.
a capsid
b monolayer
c capsomere
d envelope
e spike

Explanation:

In virology, the protein - shell surrounding the nucleic acid core of a virus is called a capsid. A monolayer is not related to the virus - structure in this context. Capsomeres are the individual protein subunits that make up the capsid. The envelope is an outer membrane - like structure in some viruses, and spikes are projections on the virus surface.

Answer:

A. capsid