Q. Q. DNA contains nucleobases, sugar and phosphate. Removal of which among these from a DNA sample will not significantly affect the length of DNA?
(a) Nucleobases
(b) Sugar
(c) Phosphate
(d) None of these
Solution :
Correct option : A The sugar and phosphate group from the main backbone(and determine the length). But the nucleobases are laterally attached to the backbone and act as the steps of the ladder and therefore cannot determine the length.