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Which of these contains a single, long DNA molecule? nucleotide gene deoxyribose chromosome

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Chromosome is the correct option for this.
A chromosome is an organized package of DNA found in the nucleus of the cell. Different organisms have different numbers of chromosomes. Humans have 23 pairs of chromosomes--22 pairs of numbered chromosomes, called autosomes, and one pair of sex chromosomes, X and Y.

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Ankit Dutt

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