GENERAL HISTOLOGY

Detailed explanation-1: -Prokaryotic cells, such as bacteria, have a free-floating chromosome that is usually circular and is not enclosed in a nuclear membrane . Instead, the DNA simply exists in a region of the cell called the nucleoid.

Detailed explanation-2: -While eukaryotic and prokaryotic cells both contain cytoplasm and a membrane that encloses the contents of the cell, only eukaryotes possess a membrane-bound nucleus. Prokaryotes, by contrast, have cells without a nucleus. Instead, prokaryotic cells possess a nucleoid region, which is not bound by a membrane.

Detailed explanation-3: -The DNA in prokaryotes is contained in a central area of the cell called the nucleoid, which is not surrounded by a nuclear membrane. Many prokaryotes also carry small, circular DNA molecules called plasmids, which are distinct from the chromosomal DNA and can provide genetic advantages in specific environments.

Detailed explanation-4: -The bacterial genome is present in the cell within a complex structure, the nucleoid. The nucleoid contains the genomic DNA, and molecules of RNA and proteins.

Detailed explanation-5: -The nucleoid is a chromatin-dense area within the cytoplasm and contains the bacterial DNA, associated proteins and RNA that are responsible for controlling the bacteria’s activity and reproduction (Fig.