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How does DNA develop resistance mechanisms?

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in Environmental Biotechnology by (64.7k points)
How does DNA develop resistance mechanisms?

(a) Information from DNA

(b) Intercellular ligands

(c) Extracellular ligands

(d) Integral proteins

This question was addressed to me in unit test.

My doubt is from Microbial Applications for Metal Removal topic in section Microbial Transformation of Heavy Metals of Environmental Biotechnology

1 Answer

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Best answer
The correct choice is (a) Information from DNA

For explanation: Bacteria uses information present in DNA that leads to the development of resistance mechanisms in them. In bacteria, the resistance genes are found within plasmids, small pieces of DNA that carry genetic instructions. Extracellular ligands, Integral proteins or Intercellular ligands doesn’t develop resistance mechanisms in bacteria.

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