Q. If the length of a DNA molecule is 1.1 metres, what will be the approximate number of base pairs?
A) $6.6 \times 10^6$ bp
B) $3.3 \times 10^9$ bp
C) $6.6 \times 10^9$ bp
D) $3.3 \times 10^6$ bp
Explanation
[Solution] Number of bp = length / distance between bp = $1.1\ m / (0.34 \times 10^{-9}\ m) \approx 3.3 \times 10^9$ bp. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.