Prokaryotes (Bacteria) possess peptidoglycan in their cell wall. They also reproduce asexually through binary fission. The protein synthesis in prokaryotes is performed through 70S ribosomes that form by the assembly of 30S and 50S ribosomal subunits. However, prokaryotes do not possess single-stranded DNA and a nucleus. Single-stranded DNA is present in a few viruses such as Parvoviruses, Canine parvovirus, Alphatorquevirus etc.