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The diameter of a metaphase chromosome is about 1400 nm, whereas that of the DNA double helix is 2 nm. This means that DNA is coiled into a structure with a diameter 700 times larger than itself. The diameter of a human hair is about 80 micrometers (0.003 inch). If a human hair were coiled into a structure with a diameter 700 times larger than itself, the diameter of the coiled human hair would approximate that of a: telephone pole (about 18 inches). trash can (about 36 inches). spaghetti noodle (about 0.1 inch). soda can (about 2 inches). pencil (about 0.3 inch).

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Answer:

The diameter of the coiled human hair structure is approximately the same as that of a Soda can which has a diameter of about 2 inches

Explanation:

Given that the diameter of the human hair is about 0.003 inches

Assuming the human hair is then coiled into a structure that has a diameter 700 times that of itself, the new diameter will be equal to 700 * 0.003 inches = 2.100 inches

Comparing the given data will the result, it can be seen that the diameter of the coiled human hair structure is approximately the same as that of a soda can which has a diameter of about 2 inches.

The results of the above shows how impressive the packaging of DNA is in the chromosomes. The diameter of a human hair is about 57 times greater than that of a metaphase chromosome.

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