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DNA is approximately 2.5 nmnm in length. If an average man is 5 ft 10 in.in. tall, how many DNA molecules could be stacked to extend from the ground to the top of the head of an average man?

Respuesta :

Answer:

7.112× 10⁸.

Explanation:

The length of DNA is 2.5 nm = 2.5 × 10⁻⁹m.

The average human length = 5 ft 10 in = 70 inch.

1 inch = 0.0254  m.

70 inch = 70 × 0.0254 = 1.778  m.

Number of DNA molecules = length of man / length of DNA.

Number of DNA molecules = 1.778  m / 2.5 × 10⁻⁹m.

Number of DNA molecules = 7.112× 10⁸.

Thus, the answer is 7.112× 10⁸.