Give three components of every nuceotide unit in a DNA molecule?

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Solution

DNA is a polynucleotide chain. Each nucleotide of DNA consists of three components:
1. A nitrogenous base: There are two types of nitrogenous bases in DNA- purines (adenine and guanine) and pyrimidines (cytosine and thymine).
2. A pentose sugar: Deoxyribose sugar is present in DNA.
3. A phosphate group

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