Prokaryotic cells do not have a nucleus. Instead, they have a region called the nucleoid , which contains their genetic material (DNA). This nucleoid region is not enclosed by a membrane, unlike the nucleus in eukaryotic cells
. The nucleoid typically contains a single circular chromosome and is in direct contact with the cytoplasm. This allows processes such as DNA transcription and translation to occur simultaneously in the cytoplasm without the compartmentalization seen in eukaryotes
. In summary, prokaryotic cells have a nucleoid region instead of a membrane-bound nucleus.
