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The Number of Cells in an Average-Sized Adult Human Is

Question 67

Essay

The number of cells in an average-sized adult human is on the order of 1014.Use this information, and the estimate that the length of DNA contained in each cell is 2 m, to do the following calculations (look up the necessary distances and show your working):
A.Over how many miles would the total DNA from the average human stretch?
B.How many times would the total DNA from the average human wrap around the planet Earth at the Equator?
C.How many times would the total DNA from the average human stretch from Earth to the Sun and back?
D.How many times would the total DNA from the average human stretch from the Earth to Pluto and back?

Correct Answer:

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A.2 × 1014 m = 124,274,238,447 miles.
B.Th...

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