Question

In Watson – Crick model of DNA, the rise per base pair would be
(a) 34 A°
(b) 3.4 A°
(c) 20 A°
(d) 0.34 A°

Answer 1

for a total 360degree rotation it moves to a distance of 34angstron and contain 10 base paires so rise per base pair will be 34/10=3.4 ang