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Question

What's the reapeating components of each DNA strand lengthwise?

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Solution

Each DNA strand is composed of repeating nucleotides. Each nucleotide has a phosphate and sugar(pentose) attached lengthwise and a nitrogenous base attached to the sugar inwards which extends to join another nitrogenous base in an adjoining strand.

Nitrogenous bases are Adenine, Guanine, Cytosine and Thymine.

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