Q. True replication of DNA is possible due to :
- Hydrogen bonding
- Phosphate backbone
- Complementary base pairing rule
- None of the above
Solution :
Correct option : C Complementary base pairing rule: The rules of base pairing (or nucleotide pairing) are:
(i) A with T: The purine Adenine (A) always pairs with the pyrimidine Thymine (T).
(ii) C with G: The pyrimidine Cytosine (C) always pairs with the purine- guanine (G).
Because of the strict base-pairing pattern, the new daughter strand is assembled according to the base present on the template.
Thus, the correct answer is option C.