Q. If a length of DNA has 45,000 base pairs, how many complete turns will the DNA molecule take?
(a) 4500
(b) 45000
(c) 45
(d) 450
Solution :
Correct option : A
Every turn of DNA has 10 bp per turn. Therefore, if the length of DNA has 45,000 bp, then the DNA molecule will have 4500 complete turns.