Look up viruses. write a short summary of what they are and what they do.

you don't need to write a summary or copy and paste i just need a little with what viruses are and what they do.

Viruses are neither prokaryotes nor eukaryotes because they lack all of the characteristics of living things except for the ability to reproduce. They are considered parasitic because they cannot live or replicate without a living host. Viruses consist of genetic material (either DNA or RNA), a protein coat, and sometimes a lipid envelope surrounding the protein coat. They have no function except to reproduce.

answer///multiple alleles;

well, i believe that the answer is 2. : 3