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  9. Q252

RRB NTPC 2025 · Question 252 of 409

The term 'complementary' in the context of DNA refers to which of the following .g properties?

  1. AIdentical chemical composition of both strands w
  2. BHydrogen bonding potential based on base specificityCorrect
  3. CMatching number of sugar-phosphate units w
  4. DParallel orientation of nucleotide chains

Answer: B. Hydrogen bonding potential based on base specificity

Official answer key verified. Detailed explanation coming soon.

Source: RRB NTPC Graduate CBT-1 response sheet 05-Jun-2025 Shift-3 (candidate-shared copy of official answer-key viewing) · official-answer-key

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