Bacteriophage is made up of:

Explanation

Bacteriophages, the viruses that infect bacteria, are composed of nucleic acids and proteins, which together form their structure. The nucleic acid can be either DNA or RNA, and it carries the genetic information necessary for the replication of the virus inside a bacterial host. Surrounding the nucleic acid is a protein coat called a capsid, which protects the viral genome and helps in attaching to and injecting it into the bacterial cell. Some bacteriophages also have additional structures, such as tails and tail fibers, which aid in recognizing and binding to specific bacterial surface receptors. Because bacteriophages lack metabolic machinery, they rely entirely on the host bacterium to reproduce, making them obligate intracellular parasites.