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NTPC Graduate Tier 1 2025 Shift-3 📅 05 Jun, 2025

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

A
Identical chemical composition of both strands
B
Parallel orientation of nucleotide chains
C
Matching number of sugar-phosphate units
D
Hydrogen bonding potential based on base specificity
Result Summary
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APEDIA

NTPC Graduate Tier 1
2025 • 05 Jun, 2025 • Shift-3
The term 'complementary' in the context of DNA refers to which of the following properties?
Correct Answer
Hydrogen bonding potential based on base specificity
[Molecular Anatomy Base]: The DNA double helix is maintained by precise structural rules governing how its fundamental building blocks interact internally.[Bind......
💡 Analysis & Explanation
[Molecular Anatomy Base] ▼
The DNA double helix is maintained by precise structural rules governing how its fundamental building blocks interact internally.
[Binding Rules Validation] ▼
The nitrogenous bases on opposing strands do not bind randomly; Adenine (A) exclusively pairs with Thymine (T), and Cytosine (C) strictly bonds with Guanine (G).
[Conceptual Definition] ▼
This incredibly specific lock-and-key interaction, driven purely by dedicated hydrogen bonds, ensures replication accuracy and is scientifically termed 'complementary base pairing'.
Conclusion ▼
It refers fundamentally to hydrogen bonding potential based on strict base specificity.