R-gene present on plasmid is meant for

Drug resistance

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Nitrogen fixation

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Locomotion

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Exchange of genetic material

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Solution

The correct option is B Drug resistance
A bacterial plasmid is an extrachromosomal circular DNA present independently in the cytoplasm of bacteria. It contains DNA as genetic material. Sometimes, it is also present in the archaea and eukaryotic organisms. It can replicate independently. It usually contains certain specific genes which provided added advantage to the bacteria containing it. For example, it contains R-gene which is meant for drug resistance.
Thus, the correct answer is 'Drug resistance.'

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Similar questions

Select the statement that describes the characteristics of genes.

(1) Proteins are never coded by DNA.

(2) Self-replicating materials are present in all living organisms as the main constituent of their genetic material.

(3) In an individual of a particular species, a specific gene is located on a particular chromosome.

(4) One chromosome can code one protein.

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