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Explain the purpose of dna

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If adopted or any other circumstance wanted or needed to find out if someone is related, etc. You could take a DNA test to see if related.
User Cheersjosh
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Answer:

Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions for the development and function of living things. All known cellular life and some viruses contain DNA. The main role of DNA in the cell is the long-term storage of information.

Step-by-step explanation:

User Praveenks
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