Question

What is the length of the DNA double helix, if the total number of bp (base pair) is 6.6 x 109?

• A. 2.2 m/bp
• B. 2.5 m/bp
• C. 2.2 m
• D. 2.5 m

Answer 1

Answer:

C. 2.2 m

The distance between 2 consecutive bp is 0.34 nm. The formula to calculate the length of the DNA double helix: The length of the DNA double helix = The total number of bp x distance between two consecutive bp. As a result, we get 2.2 m as the length of the DNA double helix.