Question

which virus structure surrounds and protects the genetic material (dna or rna)? capsid sheath envelope cell membrane

Explanation:

Viruses have a capsid structure that surrounds and protects their genetic material (DNA or RNA). The capsid is made up of protein subunits. A sheath is not a typical protective structure for viral genetic material. An envelope is an outer - layer in some viruses but it's mainly for infectivity and not the primary protective structure like the capsid. A cell membrane is a feature of cells, not viruses which are acellular.

Answer:

capsid