is 2.2 meters the length of one dna molecule in a chromosome?

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Solution

The length of human genome i.e. of the entire DNA (which is distributed on 23 pairs of chromosomes) of a human cell is approximately 2.2 meters. So it is not the length of one DNA molecule in a chromosome. The length of one molecule of DNA present per chromosome is approximately 2.5-3 cm. This length varies with individual chromosome.

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