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NEETChemistryBiomolecules

How are the fragments produced on complete hydrolysis of DNA linked in DNA molecules?

Options

  1. ATwo nucleic acid chains are wound about each other and held together by hydrogen bonds between pairs of bases.
  2. BThe fragments are linked by hydrogen bonds between adenine and thymine bases.
  3. CThe fragments are linked by disulfide bonds between cysteine residues.
  4. DThe fragments are not linked in the DNA molecule but are released as separate pieces.

Correct answer

A. Two nucleic acid chains are wound about each other and held together by hydrogen bonds between pairs of bases.

Step-by-step solution

Correct Option is : (A) Two nucleic acid chains are wound about each other and held together by hydrogen bonds between pairs of bases. The two strands are complementary to each other because the hydrogen bonds are formed between specific pairs of bases.

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