The natural role of restriction enzymes in bacteria is to make conjugation more efficient. allow transposons to move to another place in the chromosome. protect the cell from invading phages. allow cells to accept foreign DNA. provide the cell with new phenotypes, such as antibiotic resistance.

protect the cell from invading phages

Explanation:

The natural role of the restriction enzymes is to protect the cell from invading phages.

The restriction enzyme is an enzyme that functions by cutting DNAs from some pre-identified sites on the DNA. They are primarily found in bacteria where they protect the cell from invasion by foreign DNA from phages.

Once a phage invades a bacterium, the restriction enzyme quickly acts by cutting the phage's DNA into smaller pieces, leading to the destruction of the DNA and hence, the protection of the bacterium cell.

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