Multiple choice

The average person's body contains enough DNA to stretch from the sun to Pluto. How many times?

  1. 1

  2. 10

  3. 17

  4. 20

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The total length of DNA in the human body, if uncoiled and stretched out, is estimated to be long enough to reach from the Earth to Pluto and back approximately 17 times.