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Draw schematically a single polynucleoti...

Draw schematically a single polynucleotide strand (with at least three nucleotides). Provide labels and directions.

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A nucleotide has three components - a ntirogenous base, a pentose sugar and a phosphate group. Nitrogenous base is of two types.
i. Purines (adenine and guanine)
ii. Pyrimidines (cytosine, uracil/thymine)
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