Question

Strands of DNA in each cell of your body is 6 feet (1 feet = 0.30 m = 30.48 cm).

Calculate the total length of all DNA strands if your body has 37.2 trillion cells.

Answer 1

Given:

DNA in 1 cell = 6 feet

Number of cells = 37.2 trillion = 37.2 × 10¹²

Calculation:

Total length of DNA:

= 6 × 37.2 × 10¹²

= 223.2 × 10¹² feet

Using 1 foot = 0.30 m:

= 223.2 × 10¹² × 0.30

= 66.96 × 10¹² m

= 6.696 × 10¹³ m

The total length of all DNA strands is 6.696 × 10¹³ m.