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Standard XII
Biology
Question

True replication of DNA is possible due to
  1. Hydrogen bonding
  2. Phosphate backbone
  3. None of the above
  4. Complementary base pairing rule

A
Phosphate backbone
B
Hydrogen bonding
C
None of the above
D
Complementary base pairing rule
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Solution
Verified by Toppr

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.

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