What is the main role of DNA?

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It stores the information for how to make proteins.
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It is the machinery for making proteins.
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It stores the information for how to make carbohydrates.
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It is the machinery for making carbohydrates.
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1 answer

The main role of DNA is that it stores the information for how to make proteins. DNA contains the genetic instructions for the development, functioning, growth, and reproduction of all living organisms and many viruses, primarily by encoding the sequences of amino acids that make up proteins.