All prokaryotes have a very primitive nucleus in which the genetic material is

double-stranded, free, circular DNA with histones

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double-stranded DNA without histones

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histones with linear double-stranded DNA

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linear single-stranded DNA without histones

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Solution

The correct option is B double-stranded DNA without histones
Double-stranded DNA without histones is found in all prokaryotes as genetic material. It is present in nucleoid or genophore. Histones are nuclear proteins that are found in association with the chromosomes in eukaryotes.

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