All the dna of the bacterium escherichia coli is located in the nucleoid region of the cell. nucleus of the cell. ribosomes of the cell. flagella of the cell.

Nucleoid region of the cell.

Explanation:

Escherichia coli is a bacteria.

Prokaryote organisms, such as bacteria and cyanobacteria, are beings that do not have a defined nucleus and present the genetic material dispersed in the cytoplasm without any nuclear envelope. In these organisms, the presence of the so-called nucleoid occurs.

The nucleoside, also called the bacterial chromosome, is the region where all the prokaryote organism's DNA is located. In the nucleoid, DNA generally appears as a single double-stranded circular DNA molecule.

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